Operation Guide 3197
4
• P erforming illumination, or beeper operations during a
short period may cause
(recover) to appear on the
display .
After some time, battery power will recov er and
(recov er) will disappear , indicating that the above
functions are enabled again.
• If
(recover) appears frequently , it probably means
that remaining battery power is low . Leav e the watch in
bright light to allow it to charge.
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Recover indicator
Charging Precautions
Cer tain charging conditions can cause the w atch to become very hot. A void leaving
the watch in the areas described below whenev er charging its rechargeable battery .
Also note that allowing the watch to become v ery hot can cause its liquid cr ystal
display to blac k out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to char ge its rechargeable battery can cause it
to become quite hot. Take care when handling the watc h to avoid b urn injury.
The watch can become particularly hot when exposed to the follo wing
conditions for long periods.
• On the dashboard of a car parked in direct sunlight
• T oo close to an incandescent lamp
• Under direct sunlight
Exposure Level (Brightness)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Windo w (10,000 lux)
Daylight Through a Window on a Cloudy Da y (5,000 lux)
Indoor Fluorescent Lighting (500 lux)
Appro ximate
Exposure Time
5 minutes
24 minutes
48 minutes
8 hours
Charging Guide
The following tab le shows the amount of time the watch needs to be e xposed to light
each day in order to generate enough pow er for normal daily operations.
• For details about the battery operating time and daily operating conditions, see the
“P ower Supply” section of the Specifications.
• Stable operation is promoted b y frequent exposure to light.
Recovery Times
The table below sho ws the amount exposure that is required to take the battery from
one level to the ne xt.
Appro ximate Exposure Time
Lev el 5 Lev el 4 Level 3 Lev el 2 Level 1
3 hours 26 hours 7 hours
10 hours 127 hours 34 hours
19 hours 259 hours 70 hours
226 hours - - - - - - - - - - - - - - - -
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)
• The above e xposure time values are all for ref erence only . Actual required exposure
times depend on lighting conditions.
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Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Stopwatch
• Y ou can use lap time measurement to time how long it takes to complete a specific
portion (such as a single lap) of a race.
• Y ou can use split time measurement to time how long it takes to get from the start to
a specific point in a race.
Memory Management
Each time you press D to start a new elapsed time or lap/split operation in the
Stopwatch Mode, the watch automatically creates a ne w “log” in its memory . The log
remains open for data storage until y ou permanently close it by pressing A to clear
the stopwatch to all zeros.
The watch has enough memory to hold up to 121 records. Each log title screen (start
date and time) and lap/split time uses up one record.
• A log title screen identifies a single elapsed time operation, from the start up to the
point the stopwatch is reset to all zeros .
• A lap/split time record is stored under a log title screen each time you perf orm a lap/
split operation.
Example 1
Single elapsed time measurement
Log title screen + 120 lap records = 121 records
Example 2
Multiple elapsed time measurements
Measurement 1 log title screen + 60 lap records = 61 records
Measurement 2 log title screen + 59 lap records = 60 records
• Use the Recall Mode to view stopwatch records .
• If watch memory is already full when you perform a stopwatch b utton operation that
creates a new log, the oldest log in memory and all of its records are deleted
automatically to make room f or the new log.
• If you are adding records to the only log in memory and watch memory becomes
full, adding another record causes the oldest record in the log to be deleted
automatically to make room f or the new record.
• If you are adding records to a log when there are m ultiple logs in memory and watch
memory becomes full, adding another record causes the oldest log in memor y and
all of its records to be deleted automatically to make room f or new records.
How Stopwatch Data is Stored
The following tab le describes how data is stored when you perf orm the various button
operations described in “T o measure times with the stopwatch”.
Stopwatch Button Operation
D Start (from all zeros)
D Stop
D Re-start
A Lap/Split
A Clear
Data Store Operation
Creates a new log f or the current date. (The log
is updated as timing progresses.)
Time measurement stops, without storing data in
memory .
Time measurement re-starts, without storing
data in memory .
Creates new record: displayed lap/split times
Creates new record: displayed lap/split times
(Stopwatch displa y is cleared to all zeros.)
Button Operation T one
The button operation tone sounds an y time you press one
of the watch’ s buttons. Y ou can turn the button operation
tone on or off as desired.
• Even if y ou turn off the button operation tone, alarms,
the Hourly Time Signal, and other beepers all oper ate
normally .
T o turn the button operation tone on and off
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C nine times until the current button oper ation
tone setting (
or ) appears.
3. Press D to toggle the setting between
(tone on)
and
(tone off).
4. Press A to e xit the setting screen.
• The mute indicator is displa yed in all modes when the
button operation tone is turned off.
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Mute indicator
Power Sa ving Function
When turned on, the Power Sa ving function enters a
sleep state automatically whenev er the watch is left in an
area for a certain period where it is dar k. The tab le below
shows how watch functions are aff ected by the Pow er
Saving function.
Elapsed Time
in Dark
60 to 70 minutes
6 or 7 days
Display
Blank, with P ower Sa ving
indicator flashing
Blank, with P ower Sa ving
indicator not flashing
Operation
All functions enabled, e xcept for the
display
Beeper tone, illumination, and displa y
are disabled.
• Wearing the watch inside the slee ve of clothing can cause it to enter the sleep state.
Power saving indicator
• The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch
is already in the sleep state when 6:00 AM arrives, how ev er , it will remain in the
sleep state.
T o recover from the sleep state
Perf orm any one of the f ollowing operations .
• Mov e the watch to a well-lit area.
• Press any button.
T o turn Power Saving on and off
1. In the Timekeeping Mode, hold down A until the city
code star ts to flash, which indicates the setting screen.
2. Press C 11 times until the P ower Sa ving on/off screen
appears.
3. Press D to toggle P ower Saving on (
) and off ( ).
4. Press A to e xit the setting screen.
• The P ower Saving indicator is on the displa y in all
modes while Po wer Saving is turned on.
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On/Off status
Auto Return
• If you do not perf orm any operation for about two or three min utes while a setting
screen (with a flashing setting) is on the display , the watch will exit the setting screen
automatically .
Scrolling
The B and D are used in various modes and setting screens to scroll through data
on the display . In most cases, holding down these buttons during a scroll operation
scrolls at high speed.
Initial Screens
When you enter the World Time Mode or Alar m Mode, the data y ou were viewing
when you last exited the mode appears first.
Timekeeping
• Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased b y 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
• The year can be set in the range of 2000 to 2099.
• The watch’ s built-in full automatic calendar makes allow ances for different month
lengths and leap years . Once you set the date, there should be no reason to change
it e xcept after you hav e the watch’ s batter y replaced.
• The current time f or all city codes in the Timekeeping Mode and World Time Mode is
calculated in accordance with the Coordinated Universal Time (UTC) for each city ,
based on your Home City time setting.
W orld Time
• The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.