556249

Citizen Cal B470 Manual

32
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When reading this instruction manual please keep the watch diagram at
left folded out and in view.
• Refer to “3. NAME OF PARTS” (p.18) for the symbols on the diagram.
• The design may differ according to the model.
Pendant la lecture de ce mode d'emploi, dépliez le dessin de la montre à
gauche de manière à pouvoir vous y référer.
• Pour les symboles du dessin de la montre, reportez-vous à “3. NOMEN-
CLATURE DES ORGANES” (p. 83).
• Le design de la montre peut varier selon le modèle.
Cuando lea este manual de instrucciones por favor tenga el esquema del
reloj de la izquierda desplegado y a la vista.
• Diríjase a “3. DENOMINACION DE LAS PARTES” (pág. 156) para los
símbolos que aparecen en el esquema.
• El diseño puede variar según el modelo.
Beim Lesen dieser Bedienungsanleitung beziehen Sie sich bitte auf die
Abbildung im linken Faltblatt.
• Für die in der Abbildung verwendeten Symbole sich auf das Kapitel “3.
BEZEICHNUNG DER TEILE” (S. 226) beziehen.
• Das Design kann je nach Modell verschieden sein.
3
e
d
c
5
1
2
4
8
7
g
f
6
B
A
a
b
Before using
When the watch does not operate according to the
instruction manual, it is insufficiently charged.
Charge the secondary battery of the watch for more than
4 hours, approximately 20cm (8in.) away from the
fluorescent or incandescent lamp (30W) as light sources.
When charging the secondary battery, do not put it too
close to the light source.
* When charging the watch under direct rays of the sun,
charge for more than an hour.
IMPORTANT
This watch is an analog solar powered diver’s watch into which an electronic
depth meter function and chronograph function are built. The solar power
generation function transforms solar energy into electrical energy to run the
watch.
• Since solar energy is used as the power source of this watch, it has no need
of regular replacement of the battery unlike the general diver’s watches using
the mercury cell, etc. (Solar power function)
• The built-in depth meter function automatically measures the depth in diving
with the watch worn on the wrist. (Depth meter function)
• The maximum depth in diving is automatically memorized. (Maximum depth
memorizing function)
• The chronograph function measures the time in units of one second for 50
minutes at maximum.
32
Any repair of this product should be conducted at a Citizen Service
Center. For repair and inspection please contact the place of purchase or
contact a Citizen Service Center directly.
English
Warning or caution symbol followed by instructions for safe operation
and / or precautions that you should take.
Prohibition symbol followed by instructions on what you should not do.
■ The instructions for safe operation are classified using the following symbols.
(The following are just examples of symbols.)
Safety precautions
(Instructions to be followed at all times)
In order to prevent injury to yourself or other persons or damage to property,
this manual gives instructions which you should strictly follow as described
below.
■ Injury and / or damage which might be caused by using the watch
improperly or neglecting any of the instructions or precautions in this manual
are classified using the following symbols.
5
• Before using this watch, carefully read this
instruction manual for safe and correct use.
• After reading this manual, keep it at hand for
future reference.
WARNING Can cause serious injury or death.
CAUTION Can or will cause minor or moderate injury or damage.
4
CAUTION
• Rapid and sharp change of the atmosphere and/or seawater temperature
occasionally affects the indication and performance of the watch. Therefore,
it is recommended that this watch be used together with another depth
gauge. Read the indication of this watch as a rough guideline.
• Even recreational diving involves many risks. Before using this watch as an
auxiliary instrument for diving, be sure you receive right training in scuba
diving by a qualified instructor in order to acquire experience and technique
necessary for safe diving as well as to master the proper way to handle and
operate this watch.
7
WARNING
• Diving is one of the sports involving many risks. When using this watch for
diving, carefully read this manual and follow the instructions with good
understanding of the proper way to use it.
• Diving with this watch must be limited to recreational diving (diving without
decompression). Don’t use this watch for decompression diving, saturated
diving or diving in a high altitude. The depth meter function of this watch
works normally in seawater with temperatures of +10°C to +40°C (50°F to
104°F), however, depth indication is incorrect in water other than seawater
(specific gravity: 1.025).
6
Since the depth meter function of this watch is not approved as an official
depth gauge, be sure to use this function as an auxiliary means to know
the approximate depth
8 9
CONTENTS
WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1. BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2. BEFORE USING FOR DIVING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3. NAMES OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4. WARNING FUNCTIONS OF THIS SOLAR POWERED WATCH . . . . . .20
5. TIME REQUIRED FOR CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
6. SPECIAL CARE FOR THIS SOLAR POWERED WATCH . . . . . . . . . . .30
7. SWITCHING BETWEEN MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
8. ADJUSTING TIME AND DATE (Time mode) . . . . . . . . . . . . . . . . . . . . .34
9. DIVING MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
10. CHRONOGRAPH MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
11. MEASURES AGAINST POSSIBLE PROBLEMS . . . . . . . . . . . . . . . . . .44
12. SETTING FUNCTION HAND AT “0” POSITION . . . . . . . . . . . . . . . . . . .48
13. ALL RESET/ADJUSTING HAND POSITION . . . . . . . . . . . . . . . . . . . . . .50
14. NOTE ON SECONDARY BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
15. OTHER FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
16. PROPER CARE FOR LONG TERM USE . . . . . . . . . . . . . . . . . . . . . . . .56
17. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
1. BEFORE USING
A secondary battery is used in this watch to store electrical energy. If the battery
is fully charged once, the watch will continue running for about two months.
When the watch is used for diving (about two hours a week), it will run for about
one month (until NG is indicated).
<How to use this watch properly>
It is recommended that you recharge the battery everyday.
To insure that this watch demonstrates its depth meter function and
chronograph function besides the timekeeping function, always keep it
sufficiently charged.
If the battery is not sufficiently charged or the battery power is very low, the
depth meter function and chronograph function cannot be activated.
The battery of this watch is protected from overcharge.
* For recharging the battery, expose the solar cell (the face of the watch) to light.
11
This instruction manual gives explanations of the model that indicates the depth
in the metric system (m: meter) by way of example.
If your watch is a different model that indicates the depth in the foot system (ft:
foot), refer to the footage appearing together with the metric number
corresponding to it.
10
“Battery” means a secondary battery (rechargeable battery) in this manual.
Before using, make sure the watch is sufficiently charged by exposing it to the
light.
CAUTION For safe diving
• When diving, obey the rules of the buddy system*
1
every time.
• For safety, it is advised that you enjoy sports diving in the depths around
20 m (60 ft).
• Before diving with this watch, fully charge the battery without fail. When the
battery is not sufficiently charged (the function hand points at “NG”), the depth
meter function cannot be used.
If battery power declines considerably during diving, the depth meter function
to measure depth is discontinued.
• After diving, take a good rest following safety rules. If you take a plane or
move to a high place without a sufficient rest after diving, you may suffer from
decompression sickness (caisson disease).
* 1: Buddy system means that two divers pair with each other for safe diving.
13
2. BEFORE USING FOR DIVING
CAUTION Before using this watch for diving
• For using this watch as an auxiliary depth gauge, the user must not only
receive general training and instructions in diving but also follow various
rules.
• The user should not use this watch without a good knowledge and
understanding of the proper way to handle and operate it and the precautions
on it. If this watch is improperly used, it may result in malfunction or
breakdown of the watch.
WARNING Regarding the depth meter function
• Since the depth meter function of this watch is not approved as an official
depth gauge, use this function as an auxiliary means to measure a depth.
• Read the depth meter indication of this watch as a rough guideline.
12
CAUTION
Matters that require attention to the watch before/during/after diving
<Before diving>
• Check to see if the watch is set to the time mode. (When the watch is set to
the chronograph mode, it will not shift to the diving mode.)
• Check the indication of the function hand (on the charging level index).
When the function hand points to
“
NG”, the watch will not shift to the diving
mode because of insufficient battery power. If the function hand points to
“
NG”, charge the battery sufficiently so that the hand indicates
“
LV.2” or
“
LV.1”.
• Check to see if the function hand (serving as the depth indicator) points to
“
0 m (0 ft)” position when the water sensor is activated and the watch enters
the diving mode.
• Check to see if the crown is completely pressed in and screwed down tightly.
• Check to see if the watchband and the watch are tightly fastened to each
other.
• Check to see that there are no cracked, damaged or broken parts on the
watchband and glass.
• Check to see if the rotating bezel rotates normally.
• Check to see if the time and date are set correctly.
15
PROHIBITION
Circumstances that prohibit use of this watch in diving
Don’t use this watch for diving under the following circumstances.
• When the function hand indicates
“
NG” on the charging level index.
… When the function hand indicates
“
NG” on the charging level, the watch will
not measure the depth. If the function hand points at
“
NG” on the charging
level during diving, immediately stop using the depth meter function of the
watch since the watch discontinues depth measurement in this condition.
• When the watch stops running or malfunctions. (Be careful not to knock the
watch against hard things such as diving apparatus, rocks, etc.)
• When the water temperature is out of the guaranteed range for measuring
depth.
… The accuracy of the depth meter function is guaranteed under the condition
that water temperature is between +10°C and +40°C (50°F and 104°F).
• For the purpose of knowing a risk of a behavior or situation.
… This watch is not designed to serve as a drowning prevention instrument or
an emergency instrument.
• In the environment filled with helium gas (saturated diving, etc.).
… Use of the watch in such conditions may cause failure or breakdown of the
watch.
14
CAUTION Regarding diving at high altitudes or in fresh water
• If you intend to use this watch for diving in a high place or in fresh water, be
sure to have a special education in safe diving beforehand.
• Don't use the depth meter function of this watch in a high place 4,000 m
(13,120 ft) or more above sea level, because the watch gives incorrect
measurement of depth in such a place.
• This watch indicates a depth based on the specific gravity (1.025) of
seawater. Therefore, if the watch is used in fresh water, the real depth is
2.5% less than the indication of the watch.
Example: 20 m (65 ft) (indicated depth)×1.025 = 20.5 m (67 ft) (real depth)
17
<During diving>
• Avoid quick ascending, otherwise you may suffer from submarine sickness or
a functional disorder in some way. Whenever you ascend in water, carefully
keep a safe speed.
• Don’t disturb any push buttons or the crown except button B (for knowing the
memorized maximum depth) throughout the dive, otherwise the watch may
fail in water-resistance.
<After diving>
• After confirming that the crown is screwed down tightly, wash out seawater,
mud, sand, etc. sticking to the watch, with fresh water. Then, wipe off water
and moisture with a dry soft cloth.
• Neither remove the sensor cover nor pick at it with a sharp-point in order to
remove particles of dust, etc. collected in the sensor. If the sensor part is
packed with dust, etc., wash it out with fresh water. In case it is difficult to
wash out dust, consult the nearest Citizen Service Center about the trouble.
16
When the watch is shifted to the diving mode, the pressure sensor regards the
ambient pressure as that on the sea level (0 m/0 ft in depth or altitude). If the
watch is shifted to the diving mode in a high place, it regards the pressure on the
surface of the water as that on the sea level (namely 0 m/0 ft in depth/altitude). In
short, the watch always regards the surface of the water as the sea level (0 m/
0 ft) except in a place 4,000 m (13,120 ft) or more above sea level. Therefore,
you are advised not to use the depth meter function of this watch in a high place
4,000 m (13,120 ft) or more above sea level for the reason that the watch gives
incorrect measurement of depth in such a place as mentioned previously.
a: Charge levels ..................Charge level of the battery (battery power) is
indicated as follows (LV.1, LV.2, NG) by the
function hand. These guidelines indicate whether
the depth meter function is usable or not.
b: Overzone mark ................When the diving depth exceeds 50 meters
(125 feet) or there is something abnormal in the
depth meter function, the function hand points to
the overzone mark.
c: Depth meter scale ............The diving depth is indicated by the function hand
on this depth meter scale.
d: Pressure sensor ..............Measures the depth by sensing the water
pressure.
e: Water sensor....................When the water sensor gets wet, the watch is
automatically shifted to the diving mode.
f: Rotating bezel ..................The diver can know the elapsed time of diving by
using this rotating bezel.
g: Solar cell ..........................Electric energy necessary for running the watch is
generated by this solar cell when it is exposed to
enough light for charging the battery.
19
3. NAMES OF PARTS
Collate the following table with the watch diagram on the first page.
18
Name Time mode Diving mode
Chronograph mode
A: Button A To be pressed for selecting a mode
B: Button B
To be pressed for showing the maximum depth
left in the memory or for actuating the chronograph.
1:
Function hand
Indicates charging level.
Indicates depth. Indicates second(s).
2: Mode hand
Stops at DV position. Stops at DV position.
Indicates minute(s).
3: Hour hand Always indicates the time (hour).
4: Minute hand Always indicates the time (minute).
5:
Second hand
Always indicates the time (second).
6:
24-hour hand
Always indicates the time in the
24-hour system synchronized with the hour hand.
7: Calendar Always indicates the date.
8: Crown To be used for adjusting the time or date.
2120
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60
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60
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1545
When the battery is sufficiently charged and the time is correctly set:
Function hand: Points at
LV.2, LV.1 or NG.
Function hand: Points at NG.
[Time reset warning indication]
Function hand: Points at “0”.
[Stop warning indication]
Function hand: Points at “0”.
Mode hand: Points at “0”.
[Insufficient charge warning indication]
2 second interval
movement
1 second
interval
movement
As the battery is
recharged:
Irregular 2
second interval
movement
As the battery
power declines
furthermore:
[Normal indication (Time mode)]
As the battery power
declines:
As the battery is
recharged:
4. WARNING FUNCTIONS OF THIS SOLAR
POWERED WATCH
With decline of the battery power of this watch, its warning function is activated
to change the indication.
2322
Charge level indication
The function hand indicates the charge level as follows (LV.1, LV.2 and NG) to
let the user know whether the watch can be used for diving or not.
In the diving mode, consumption of battery power is considerably increased
because the pressure sensor and water sensor are actuated. Before using this
watch for diving, charge the battery sufficiently and confirm the charging level
which is indicated by the function hand.
<When the function hand points at LV.1 (at 56-seconds
position)>
The watch is securing battery power enough for sports diving
at the depth of 20 m (66 ft) or so for about an hour.
* However, when the function hand points at LV.1 as a result
of charging the battery after it was once depleted (after the
status that the function hand indicated NG), be sure to
charge the battery with a lighting of 3000 lux (20 cm under a
fluorescent lamp) for at least 10 minutes before diving.
* If diving continues for more than one hour, pay careful
attention to the indication of the function hand, because the
indication may change to NG from LV.1 during the diving
and the watch may discontinue measuring the depth.
<When the function hand points at “LV.2” (54 seconds)>
The battery is almost fully charged. Accordingly, the watch
can be used reliably for diving.
<When the function hand points at “NG” (58 seconds)>
The watch will not shift to the diving mode because of
insufficient charging. When the watch is in this status, it
cannot be used for diving because its depth meter function
won't be activated.
If the function hand points to “NG” during a dive, immediately
stop using relying on the watch for depth measurement.
2524
CAUTION
• Use the indication of the charge level as a reference only.
• If the watch is exposed to strong light for charging the battery, the function
hand may temporarily indicate “LV.1” or “LV.2” despite insufficient charging. If
the function hand goes to “LV.1” or “LV.2” from “NG” position in a short time,
you need to pay careful attention to charging conditions.
It is recommended that you keep the battery sufficiently charged all the time
but especially before using the watch for diving. Always check the indication
of charge level carefully just before diving. (For details of charging time, refer
to “5. TIME REQUIRED FOR CHARGING”.)
Insufficient charge warning function
Insufficient charge warning indication
— Mode hand: DV position, Function hand: NG position —
Whenever the battery power becomes insufficient for
operation, the watch is automatically shifted to the
Time mode regardless of the currently set mode and
the second hand goes for 2 second interval movement.
(Insufficient charge warning indication)
If the watch is left in this condition without recharging
for another two days, the watch will stop.
* If the watch falls into such condition, the time measurement
will be discontinued in the chronograph mode.
* While the watch is falling into the insufficient charge warning indication, all
button operations are ineffective except the max. depth operation.
Since the watch continues accurate indication of the date and time even in
the insufficient charge warning indication, the watch will recover normal
operation if it is exposed to light for sufficiently charging the battery. For
using the watch for diving, sufficiently charge the battery until the function
hand indicates “LV.1” or “LV.2” on the charge level.
2 second
interval
movement
2 seconds
2 seconds
27
Time reset warning function
Time reset warning indication
— Mode hand: “0” position,Function hand: “0” position —
With progress in charging the battery as the watch
is exposed to light, the watch starts running but
shows incorrect time. In this condition the
second hand moves irregularly every two seconds
to show that the time is incorrect. (Time reset
warning indication)
Stop warning function
Stop warning indication
— Mode hand: “0” position, Function hand: “0” position —
If the watch is left in the insufficient charge warning indication for two days, both
the mode hand and function hand will move to “0” position respectively. If the
watch falls into this condition, it indicates that the watch has stopped operation
completely. (Stop warning indication)
* All functions of the watch are inactivated in this indication.
Overcharge prevention function
This watch has an overcharge prevention function. When the secondary battery
is fully charged, this function is activated to protect the battery from overcharge
by cutting of power supply. This function relieves you from worry about
overcharge.
26
When the battery is charged in this condition, the watch restarts operation
as it is switched to the time reset warning indication.
Irregular 2
second interval
movement
2 seconds
2 seconds
To change the watch to the time mode, reset the watch correctly after
sufficiently charging the battery.
* In the case the battery is sufficiently charged but the watch has not been
reset to the correct time, the second hand continues to go irregularly every
two seconds.
5. TIME REQUIRED FOR CHARGING
Since time required for recharging the battery varies according to model
(depending on the dial color, etc.), refer to the following table as a rough
guideline for charging the battery.
2928
Illumi-
nance
(lux)
Environment
Time required for charging
Charging time
required to make the
second hand move
normally from the
watch stop status.
Charging
time for
one-day
operation
Charging
time required
for fully
charging
* Each time required for charging means a duration in which the watch is
continuously exposed to the light indicated.
Charging time required
for fully charging: Time required for fully charging the battery, starting from the
state that the watch has stopped operation (in the stop
warning indication).
Charging time for
one-day operation: Time required for charging the battery enough for running
the watch for one day, starting from the state that the second
hand normally goes every second.
(Note) For using the watch for diving (one-hour diving a day),
time required for charging must be extended 1.5 times
as long as the time appearing in the table.
500 Under indoor lighting 2 hrs 16 hrs 134 hrs
1,000
60-70 cm (24-28 in.) under
50 min 6 hrs 30 min 57 hrs
a fluorescent lamp (30 W)
3,000
20 cm (8 in.) under
16 min 2 hrs 30 min 18 hrs
a fluorescent lamp (30 W)
10,000 Cloudy outdoor 4 min 1 hr 5 hrs
100,000
Under bright sunlight in summer
2 min 45 min 2 hrs 30 min
3130
6. SPECIAL CARE FOR THIS SOLAR POWERED
WATCH
<Always take care to charge the battery of the watch.>
• Mind that the battery power is apt to decline if you wear a jacket or a long-
sleeved shirt, because the watch is usually shaded by such clothes and the
battery is insufficiently charged as a result.
• Try to put the watch in a well-lighted place, as far as circumstances permit,
when you take it off. If you do, the watch will continue normal running.
CAUTION — Notes on charging —
• Avoid charging in a hot place where the ambient temperature is +60°C/140°F
or more, because an extreme rise in temperature may cause a breakdown of
the watch.
Examples: Charging near a hot light source such as an incandescent lamp,
halogen lamp, etc.
Charging in a place that easily becomes hot such as on a car dashboard,
etc.
• When the watch is exposed to an incandescent lamp for charging, carefully
keep the watch 50 cm (20 in.) or more apart from it so as not to get the watch
hot.
WARNING — Note on handling the secondary battery —
• The user should not remove the secondary battery from the watch. If you
remove the battery from the watch for unavoidable reasons, be sure to keep it
outside the reach of a child to prevent him/her from swallowing it.
• If a child swallows the secondary battery by mistake, immediately consult a
doctor for treatment.
WARNING — Use the specified secondary battery only —
• Never use any battery other than the specified secondary battery. This watch
is so designed that it does not run with any battery other than the specified
secondary battery. However, if another battery such as a mercury battery for
example, is forcibly set in the watch and it is charged, the battery will not only
be overcharged and burst, but if worst comes to worst, it will resultingly
damage the watch and injure the user and other people.
To repeat the warning, use the specified secondary battery only without fail
whenever the secondary battery needs replacement.
3332
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(Indication in
standby status)
(Depth indication)
When watch is at a
depth of 1 m (5 ft)
or more:
When watch is
at a depth of
less than 1 m
(5 ft):
<Chronograph mode> <Time mode>
Press button A
continuously for
2 seconds.
When the water
Function hand: “0” position
Mode hand: “0” position
Function hand: “Charge
level index” position
Mode hand: “DV” position
Function hand: “0” position
Mode hand: “DV” position
Function hand: Depth indication
Mode hand: “DV” position
7. SWITCHING BETWEEN MODES
• Each time button A is pressed for two seconds, the mode is switched from
the time mode to the chronograph mode and vice versa.
<Diving mode>
A
• If the water sensor gets wet while the watch is in time mode, the mode is
switched over to the diving mode. However, this mode shift is not performed
when the function hand indicates “NG” on the charge level index.
sensor gets wet:
When button A
is pressed for
2 seconds as
function hand
indicates “0 m”
(0 ft) in depth, or
function hand
continuously
points at “0 m” (0 ft)
in depth for
10 seconds
after depth
measurement is
complete:
8. ADJUSTING TIME AND DATE (Time mode)
The watch shows time and date in the Time mode.
Besides time and date, the function hand indicates the battery power at three
levels.
Time (shown by hour, minute, second and 24-hour hands) and date can be
checked any time regardless of the mode.
3534
Date
Minute hand
Hour hand
24-hour hand
Second hand
Crown
Normal position
Function hand (Charge
level index)
Mode hand: DV position
Time adjustment position
Date adjustment position
0
m
3
0
4
0
2
0
3
6
9
1
2
1
5
5
0
L
V
.
2
L
V
.
1
N
G
50
10
30
60
30
1545
20
40
24
12
16
20
8
4
D
V
7
Manner to adjust time
Time can be adjusted in the Time mode.
(1) After turning the crown counterclockwise to unscrew it, pull the crown out to
the time adjustment position (the second click stop position), the second
hand will stop running.
(2) Set the watch for the correct time by turning the crown.
(3) Press the crown in to the normal position and the watch (second hand) starts
running.
(4) Turn the crown clockwise to screw it tightly against the case.
* When the crown is pulled to the time adjustment position, the function hand
points at the “0” second position.
If the function hand does not point at the “0” second position, correct the hand
position referring to “12. SETTING FUNCTION HAND AT “0” POSITION”.
How to adjust date
(1) After turning the crown counterclockwise to unscrew it, pull the crown out to
the date adjustment position (the first click stop position).
(2) Set the watch for the correct date by turning the crown.
(3) Press the crown in to the normal position.
(4) Turn the crown clockwise to screw it tightly against the case.
3736
<Diving mode (Standby status)>
When the
crown is
unscrewed
(loosened).
When the
crown is
screwed
down
(fastened).
Date
Minute
hand
B
A
Hour hand
24-hour
hand
Second
hand
* If the function hand and
mode hand don’t point to
their respectively specified
positions (mode hand: “DV”
position, function hand: “0”
position) when the watch
enters the Diving mode
(standby status), adjust the
hand positions referring to
“11. MEASURES AGAINST
POSSIBLE PROBLEMS”.
Function hand:
“0” position
0
m
3
0
4
0
2
0
3
6
9
1
2
1
5
5
0
L
V
.
2
L
V
.
1
N
G
50
10
30
60
30
1545
20
40
24
12
16
20
8
4
D
V
7
9. DIVING MODE
When the watch is immersed in the water, while it is set in the Time mode and
the battery is charged enough for diving, the water sensor senses the water and
switches the watch to Diving mode to measure the depth. In the Diving mode,
the watch automatically memorizes the maximum depth of the last dive and the
user can recall it after the dive.
Mode hand: “DV”
position
Note: If date is adjusted when the watch shows a time between 9:00 pm and
1:00 am, the watch may not advance the date indication the next morning.
<Note on operation of the crown>
The crown of this watch is designed to be screwed down to secure the water-
resistance of the watch.
• For pulling out the crown for adjustment, unscrew it to get it loose first.
• After adjustment with the crown, press it in to the normal position and then
screw it down without fail.
• Do not operate any button while the crown is being pulled out.
If a button is operated in such the status, it may cause some change in the
indication or disorder of some hand(s).
• Do not pull out or turn the crown when the watch gets wet or is in the water.
Otherwise, the watch loses water-resistance and the inside of the watch gets
wet.
3938
<Depth indication>
Indication range: 0 to 50 m (0 to 125 ft) deep (measured every second)
Indication unit: 1 m/5 ft (Decimals of five and above in the first decimal place are
rounded up and anything under five in the first decimal place is rounded down.
Depth less than 1 m/5 ft is indicated as 0 m/0 ft.)
<Manner to read depth indication>
When the watch reaches the depth of 1 m/5 ft or more in diving, it starts
measuring the depth. In diving, the indication by the function hand represents
the depth.
• When the depth is less than 1 m/5 ft, the function hand indicates 0 m/0 ft.
• When the depth exceeds 50 m (125 ft), the function hand stops at the
overzone mark (52-seconds position) to show that the depth is out of the
indication range. As the diver ascends in the water and the depth is less than
50 m (125 ft), the watch again indicates the depth.
<How to cancel the Diving mode>
(1) Press button A for 2 seconds after diving or in the water where it is less than
1 m (5 ft) deep (depth indication: 0 m/0 ft). The Diving mode is canceled and
the watch returns to the Time mode.
(2) When the watch is left for 10 minutes after diving or in the water where it is
less than 1 m (5 ft) deep (depth indication: 0 m/0 ft), the watch automatically
returns to the Time mode with cancellation of the Diving mode. If the watch is
again immersed in the water 1 m (5 ft) or more deep within 10 minutes after
the last dive, the new dive is regarded as a continuation of the last dive and
the watch continues to measure depth.
* Wet detection error indication
If the diving standby mode (water sensor is in action) continues for 1 hour or
more, the function hand points at the overzone mark.
If the watch remains in this status for a long time, refer to “11. MEASURES
AGAINST POSSIBLE PROBLEMS.”
4140
<How to recall the memorized maximum depth>
(1) Press button B in the Time mode or Diving mode
(when depth indication is 0 m/0 ft). The function
hand indicates the memorized maximum depth.
(2) To cancel the maximum depth indication, press
button B again.
* Indication of the memorized maximum depth
continues for 30 seconds and is automatically
canceled after that.
* The memory of the maximum depth of the last dive
is held until the watch is used in the next dive.
* If the maximum depth in diving is less than 1 m (5 ft), it is not memorized. On
the other hand, if the maximum depth exceeds 50 m (125 ft), it is memorized
as an overzone depth.
* When the watch is used in diving for the first time, it occasionally shows data
stored during inspection prior to shipment.
B
0
m
3
0
4
0
2
0
3
6
9
1
2
1
5
5
0
L
V
.
2
L
V
.
1
N
G
10. CHRONOGRAPH MODE
The chronograph function enables this watch to measure time in units of 1
second for a maximum of 49 minutes 59 seconds. When it has reached 50
minutes, since a time measurement was started, the chronograph stops
measuring time and the hands move to the reset position.
* If the watch is left in reset status in the chronograph mode for 3 minutes, it
automatically switches to the Time mode.
<Chronograph indication — Reset position —>
Seconds indicator
(Function hand)
Minute indicator
(Mode hand)
Mode hand: Serves as the
minute indicator in
chronograph mode.
Function hand: Serves as
the seconds indicator in
chronograph mode.
0
m
3
0
4
0
2
0
3
6
9
1
2
1
5
5
0
L
V
.
2
L
V
.
1
N
G
50
10
30
20
40
D
V
50
10
D
V
B
A
43
A : Press the button A.
B : Press the button B.
BB
A
<How to measure time>
(1) In the Time mode, press and hold button A for 2 seconds or more to switch
the watch to the Chronograph mode. As a result, both the function hand and
mode hand quickly go to their respective “0” positions and then stop.
(2) Each time button B is pressed, both the hands start and stop alternately.
(3) If button A is pressed while both the hands are stopped, the chronograph
switches to the reset status.
* The watch cannot be switched to the Chronograph mode from the Diving
mode.
* If the function hand or/and mode hand do not reset to their respective “0”
positions when the watch enters the Chronograph mode or the chronograph is
reset, adjust the hand(s) to the “0” position referring to “11. MEASURES
AGAINST POSSIBLE PROBLEMS”.
* The mode cannot be changed while the time is being measured in the
Chronograph mode. If the mode is changed while in the stop state of the
Chronograph mode, then indication is cleared.
Reset
Measure
time
Stop
42
▼
▼
▼
▼
4544
11. MEASURES AGAINST POSSIBLE PROBLEMS
If the solar powered watch is insufficiently charged or its battery power is
considerably consumed, the watch functions are limited to a certain range and the
watch warns the user of its status by various means such as abnormal indications.
To avoid such a power failure, always try to charge the battery sufficiently.
● Some hand is out of the correct position.
If a strong shock or static electricity is given to the watch by careless handling,
the hands may show an incorrect indication.
•
Adjust the function hand (chronograph second indicator) when it is out of the
“
0
”
position (the mode hand functions normally) in the following conditions referring
to
“
12. SETTING FUNCTION HAND AT
“
0
”
POSITION
”
.
1) When the watch is in the reset status of the Chronograph mode
2) When the watch is set to the time adjustment mode (the crown is pulled to the
second click stop position)
3) When the watch is in the diving mode (standby status).
• In the case the function hand and/or the mode hand are out of their respective
“0” positions in other modes, adjust the hand(s) referring to “13. ALL RESET/
ADJUSTING HAND POSITION”.
● The second hand jumps 2 seconds every 2 seconds.
Note this as the insufficient charge warning of a decline in the battery power. If it
occurs, immediately recharge the battery sufficiently.
* For details, refer to “4. WARNING FUNCTIONS OF THIS SOLAR POWERED
WATCH”.
● The second hand moves irregularly every 2 seconds.
Note this as the time setting warning that warns of incorrect time indication
caused by a temporary stoppage of the watch.In such a case, sufficiently charge
the battery , then set the watch for the correct time.
* For details, refer to “4. WARNING FUNCTIONS OF THIS SOLAR POWERED
WATCH”.
● The modes cannot be switched.
If the battery power drops, the modes cannot be switched under the following
conditions.
• When the function hand points to “NG”, the watch cannot be switched over to
the Diving mode even if the water sensor gets wet.
• When the watch is in the insufficient charge warning status, the mode cannot
be switched over to the Chronograph mode.
In such a case, sufficiently charge the battery.
* For details, refer to “4. WARNING FUNCTIONS OF THIS SOLAR POWERED
WATCH”.
4746
● The watch does not switch to the Time mode from the Diving mode
(depth indication mode).
When the user climbs to a high place or is on a flight, the watch may
unexpectedly be shifted to the Diving mode because of a sharp change in the
atmospheric pressure (pressure change equivalent to the depth of 1 m/5 ft). If it
occurs, the watch may fail to switch from the Diving mode after the user goes
back to the ground level, because the depth meter function didn’t reset the depth
indication to “0 m (0 ft)”. Besides the aforementioned case, the watch may enter
the Diving mode because the water sensor is activated by sweat or other
moisture.
If the depth indication is less than 4 m (15 ft), press button A for 2 seconds or
more to switch to the Time mode. If the depth indication is more than 4 m (15 ft),
adjust the watch according to “13. ALL RESET/ADJUSTING HAND POSITION”.
● The function hand continues to indicate the overzone mark.
If the water sensor gets dirty or wet, it is activated even when the watch is not
wet and the wet detection error indication (the function hand points to the
overzone mark) appears.
In case the watch falls into this status, carefully clean the water sensor part and
wipe out moisture completely.
* If careful cleaning results in failure in recovering the watch from the above-
mentioned status, it is possible that the pressure sensor is faulty. In that case,
immediately stop using the watch and consult with the store where you
purchased the watch or the nearest Citizen Service Center.
● The watch malfunctions otherwise or shows abnormal reading.
If a strong shock or static electricity is given to the watch, the watch may come
into abnormal running that is out of explanation of this instruction manual.
If the watch falls into such a status, adjust it following the instructions of “13. ALL
RESET/ADJUSTING HAND POSITION”.
4948
12. SETTING FUNCTION HAND AT “0” POSITION
(1) Set the watch to the Time mode or
Chronograph mode.
Turn the crown to loosen it and pull it
out to the second click stop position.
(2) Press button A or B to set the
function hand to the “0” position.
(3) Press the crown in to the normal
position and turn it until it is tightly
screwed against the case.
0
m
3
0
4
0
2
0
3
6
9
1
2
1
5
5
0
L
V
.
2
L
V
.
1
N
G
“0” position
Within ±15 graduations before/after
the “0” point.
Adjusting position
B
A
* The aforementioned procedure is effectual only when the hand is located
within ±15 graduations before/after the “0” point. When the hand is located
outside the adjustable range, correct the “0” position of the hand referring to
“13. ALL RESET/ADJUSTING HAND POSITION”.
* If the watch has been left without any operation for 3 minutes or longer as the
crown is pulled to the second click stop position, the function hand does not
move regardless of button operation. If the watch falls into such the condition,
press the crown into the normal position and make a fresh start to adjust the
hand position.
* Before unscrewing and pulling out the crown, make sure that the crown is not
wet.
Automatic time correction function
If it takes 4 minutes or less to adjust the position of the function hand in
the Chronograph mode, the watch automatically sets the hour, minute and
second hands for the correct time immediately after the adjustment by the
automatic time correction function. Therefore, if adjustment is finished within
4 minutes, the watch has no need of manual time correction. However, if the
crown is turned during adjustment, the watch will not indicating a correct
time. If adjustment is not complete within 4 minutes, you will need to not only
adjust the “0” position of the second indicator (function hand) in the
Chronograph mode but also to set the correct time.
5150
13. ALL RESET/ADJUSTING HAND POSITION
(1) Unscrew the crown and pull it out to
the second click stop position.
(2) Press buttons A and B
simultaneously. If the function hand
moves slightly, the watch is reset in
whole.
(3) Press button A or B to set the
function hand and mode hand to their
respective “0” positions.
Button A: For adjustment counter-
clockwise.
Button B: For adjustment clockwise.
* The function hand and the mode
hand move interlocking with each
other.
(4) Correct the time indication by turning
the crown. (Refer to “8. ADJUSTING
TIME AND DATE (Time mode)”.)
0
m
3
0
4
0
2
0
3
6
9
1
2
1
5
5
0
L
V
.
2
L
V
.
1
N
G
50
10
30
20
40
D
V
50
10
D
V
Mode hand
Function
hand
Adjusting position
B
A
(5) Press the crown in to the normal position and screw it down tightly against
the case.
As the crown is pressed into the normal position, the watch returns to the
Time mode and starts running.
* After the watch is reset, the function hand points at “NG” position
regardless of remaining battery power. Approximately 1 hour after resetting,
the function hand will indicate the charge level. (While the function hand is
indicating “NG”, the watch cannot be switched to the Diving mode.)
* If the ALL RESET/ADJUSTING HAND POSITION fails in clearing away the
trouble, consult with the store where you purchased the watch or the
nearest Citizen Service Center about the trouble.
Note that the maximum depth memorized during the last dive is
cleared simultaneously during ALL RESET.
[How to use the rotating bezel]
On starting a dive, turn the rotating bezel
counterclockwise to set the triangle mark (
▼▼) to the
position where the minute hand is located. After
that, the minute hand serves to indicate the
elapsed time on the rotating bezel.
(Example) In the figure on the right, the minute
hand indicates that 10 minutes has passed since
the dive was started (since the
▼▼ mark was set at
the starting point).
CAUTION
• The rotating bezel can be turned counterclockwise only, to avoid malfunction.
Be careful not to turn the rotating bezel clockwise by force, otherwise the
rotating bezel may be damaged.
• When using the rotating bezel, you are advised to read its indication just as a
guideline.
5352
1
0
2
0
3
0
4
0
5
0
14. NOTE ON SECONDARY BATTERY
The secondary battery used in this watch is a clean energy battery that
incorporates no toxic substance such as mercury inside. The secondary battery
has no need of periodical replacement because it is capable of repeated
charging and discharging.
15. OTHER FUNCTIONS
[Rotating bezel]
The rotating bezel means the rotating ring set on the rim of the watch case. An
elapsed time can be checked by this rotating bezel.
Elapsed time:
10 minutes
5554
[No decompression limits]
The range within which the diver can rise to the surface without rest for
decompression, is determined by the depth and elapsed time of the dive. The
ranges are called “No Decompression Limits”.
A table of “No Decompression Limits” compiled according to the U.S. Navy
Diving Manual (1993 edition) is printed on the watchband of this watch (there
are some models that have no print of the table on the watchband).
CAUTION
• The table of no decompression limits is provided for one-time diving.
• Since the no decompression limits differ depending on divers physical
condition and difference among individuals, use this table as a guideline only.
• In case of diving that requires the diver to take a rest for decompression
before rising to the surface, perform diving following a manual exclusively
compiled for diving.
— How to read no decompression limits —
DEPTH.m N.D.TIME
(Max. depth in meter) (No decompression time)
12m (40ft) . . . . . . . .200Min
15m (50ft) . . . . . . . .100Min
18m (60ft) . . . . . . . .60Min
21m (70ft) . . . . . . . .50Min
24m (80ft) . . . . . . . .40Min
27m (90ft) . . . . . . . .30Min
30m (100ft) . . . . . . .25Min
33m (110ft) . . . . . . .20Min
36m (120ft) . . . . . . .15Min
39m (130ft) . . . . . . .10Min
42m (140ft) . . . . . . .10Min
45m (150ft) . . . . . . . 5Min
Example: Read the
table as follows.
In case the maximum
diving depth is 21 m
(70 ft) and the elapsed
time is 50 minutes or
shorter, the diver is not
required to take a rest
for decompression while
rising to the surface.
No Decompression
Limits
30
N.D.LIMITS
DEPTH.M N.D.TIME
12
15
18
21
24
27
200
100
60
50
40
30
30
33
36
39
42
45
25
20
15
10
10
5
5756
Indication
Dial
Case (Case back)
OK
OK OK
OK
DIVER’S
200m
WATER
RESIST
(ANT)
Example of use in the wet
NONO
Specifications
200 m deep
water –
resistance
Water splashes on
the watch (when
washing face, in rain)
Swimming,
washing,
kitchen work
Skin diving,
marine sports
Scuba diving
with air tank
Saturation
diving using
helium gas
Operating the crown
or button when the
watch is wet
For maintaining the water-resistance
For maintaining the water-resistance, ask the nearest Citizen Service Center
directly or through the store where you purchased the watch to inspect the
watch and to replace the packing, glass, crown, etc. if needed once a year or
every two years.
16. PROPER CARE FOR LONG TERM USE
WARNING — About water-resistance —
• This watch is water-resistant against water pressure at the depth of 200 m.
Although the watch can be used for scuba diving with an air tank, it cannot be
used for saturation diving using helium gas.
5958
CAUTION
• Do not use this watch unless the crown is screwed down into the normal
position. Make sure that the crown is tightly screwed down against the case.
• When either the watch or your hand is wet, don’t operate any button or the
crown, except button B, to prevent the watch from getting wet inside and
deteriorated in water-resistance.
• If the inside of the watch gets wet or the inside of the glass gets fogged and
the watch does not recover from such a condition, immediately ask the
nearest Citizen Service Center to overhaul it. If the watch is left in such
condition, the inside will get rusty.
• If seawater gets into the watch, put the watch in a case or vinyl bag and
immediately ask the nearest Citizen Service Center to overhaul it. If the watch
is left with seawater inside, there is a danger that the internal pressure of the
watch will increase and watch parts (glass, crown, buttons, etc.) will be blown
away by the pressure.
CAUTION — For repairing the watch —
• This watch must be repaired by an authorized Citizen Service Center only.
CAUTION — Note on the luminous dial —
• The luminous paint used for the dial of this watch is mainly made from light
accumulating materials, which are harmless to the human body and the
environment since it contains no toxic substance such as a radioactive
material.
This luminous paint accumulates light of the sun and indoor lighting and emits
light in a dark place. However, its luminance gradually fades because it
discharges accumulated light. The duration that the luminous paint emits light
differs depending on the illuminance and distance from the light source when
it accumulates light.
If the luminous paint accumulates insufficient light, it will not emit light in a
dark place, or even if it emits light, its luminance rapidly fades. Therefore,
carefully expose the luminous dial to light so that the luminous paint
accumulates sufficient light especially before diving. It is recommended that
you use an underwater flashlight to apply light to the watch during diving.
CAUTION
— Operating environment —
• Be sure to use the watch under specified temperatures described in this
owner’s manual. If not, it may stop or malfunction.
• Do not wear the watch in a hot place such as a sauna, because the watch is
easily heated in such a place and you may burn your wrist and other parts of
your body.
• Do not leave the watch in extremely hot locations such as the dashboard of a
car. It may damage the plastic parts and cause malfunction.
• Do not bring the watch close to a magnet or magnetic material. If the watch is
brought close to a magnetic health appliance (magnetic necklace, magnetic
bellyband, etc.), the magnetic door of a refrigerator, the magnetic latch of a
bag, the earphone of a cellular phone and so on, the watch may fail in
keeping good time. If the watch is out of order for the said reason, keep the
watch away from such things and reset the watch to the correct time.
• The IC used in the quartz watch has a characteristic that it cannot withstand
much static electricity. If the watch is affected by static electricity radiated
from a TV set, etc., it may gain or lose time.
6160
CAUTION — Always keep the watch clean —
• The case back and the space between the skin and watchband tend to get
dirty and may get rusty. This may cause corrosion of the metal, clothes may
be soiled by such dirt. To prevent this, try to keep the watch clean at all times.
<How to clean the watch>
• Wipe the case and glass with a soft dry cloth to remove sweat and moisture
from them.
• Wash the metal watchband, plastic watchband or rubber watchband in water,
and remove dust and soil accumulated in openings in the metal watchband
with a soft brush, etc.
• Don’t use thinner, benzine or other solvents for cleaning since they may
damage the watch.
63
17. SPECIFICATIONS
1. Type . . . . . . . . . . . . . . . . .Solar powered analog watch with depth meter
function
2. Model . . . . . . . . . . . . . . . .B740/B745: Depth indication in meters
B741/B746: Depth indication in feet
3. Watch accuracy . . . . . . . .±15 seconds per month (average)
[at normal temperatures (+5°C to +35°C/+41°F to
+95°F)]
4. Depth gauge accuracy . . .At depth of 1 to 10 m (5.0 to 25.0 ft): within ±1 m
(±5.0 ft)
At depth of 11 to 50 m (27.5 to 125.0 ft): within
±2 m (±7.5 ft)
(On the condition that the water temperature is
constant and error in reading is excluded.)
* Temperature range for guaranteed accuracy:
+10°C to +40°C (+50°F to +104°F)
Depth gauge accuracy is influenced by changes
in surrounding temperature.
5. Range of watch
operating temperatures . .–10°C to +60°C (+14°F to +140°F)
• Be careful not to drop the watch on the floor, etc.
• Don’t use the watch in an environment where the watch is exposed to
chemicals or gases. If the watch is cleaned using thinner, benzine or other
solvents (gasoline, nail-polish, creosol, bathroom cleanser, adhesive, etc.), it
may cause discoloration, corrosion, dissolution or other damage to the watch.
If the watchband or case is stained with mercury used in a clinical
thermometer, etc., the stained part may be discolored. Pay careful attention
to chemicals when you are wearing the watch near them.
62
6564
8. Duration of operation . . . .• From full charge to stopping of watch: 2 months
approx.
• From full charge to NG indication: 1 month
approx.
• From insufficient charge warning to stopping of
watch: 2 days approx.
* Duration of operation greatly varies depending on
frequency of use of the depth gauge and
chronograph. If the watch gets wet, though it is
not used in diving, the water sensor is activated
and the duration is shortened accordingly.
9. Secondary battery used . .One secondary battery
* Specifications are subject to change without notice.
6. Indications . . . . . . . . . . . .• Time: Hour, minute, second, 24-hour, Charge
level
• Date
• Chronograph: Minute, second (50-minute
chronograph, reading in units of 1 second)
• Depth gauge: 1 m to 50 m (5 ft to 125 ft)
Reading in units of 1 m (2.5 ft)
Depth less than 1 m (5 ft) is indicated as 0 m (0 ft)
.
Depth more than 50 m (125 ft) is indicated as
overzone.
• Maximum depth to be memorized: 1 m to 50 m
(5 ft to 125 ft)
7. Additional functions . . . . .• Charge level indication function
• Insufficient charge warning function
• Stop warning function
• Time reset warning function
• Overcharge prevention function
… 32


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The manual is 0,25 mb in size.

 

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