Manual Casio 5398 - GA-400 (page 2 of 6) (English)

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Operation Guide 5398

E-19

3. After the setting is the way you want, press A to return to the Timekeeping

Mode.

Note

• After you specify a city code, the watch will use UTC* offsets in the World Time

Mode to calculate the current time for other time zones based on the current time

in your Home City.

* Coordinated Universal Time, the world-wide scientiﬁ c standard of timekeeping.

The reference point for UTC is Greenwich, England.

E-18

Conﬁ guring Home City Settings

There are two Home City settings: actually selecting the Home City, and selecting

either standard time or daylight saving time (DST).

To conﬁ gure Home City settings

1. In the Timekeeping Mode, hold down A until the

ﬂ ashing Hold indicator disappears from the display

and the currently selected city code appears on the

right side of the upper display.

• This indicates the city code setting mode.

2. Rotate the rotary switch to scroll through city codes on

the digital display until the one you want to use as your

Home City is displayed.

• For details about city codes, see the “City Code

Table” at the back of this manual.

City Code

E-17

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

Hour

Month-Day

Minute

Day of week

Second

Hour : Minute

PM indicator

Countdown Timer hand

E-16

Note

• Watch button functions are the same regardless of whether the hands are moved

out of the way or at their normal positions.

• Changing to another mode will cause the hands to move back to their normal

positions.

• The hands also will move back to their normal positions automatically if no

operation is performed for about one hour.

E-15

1. While holding down B, press C.

• This will cause the hour and minute hands to move to a location where they do

not block your view of the digital display.

Example: When the current time is 8:23

Flashes while the hands are moved out of the way.

2. Holding down B again as you press C will cause the hands to return to their

normal positions (normal timekeeping).

E-14

• Quickly rotating the rotary switch three times in either direction will start high-speed

movement (hand movement or displayed setting scrolling) in the corresponding

direction (forward or back). To stop a high-speed operation, rotate the rotary

switch in the direction opposite that of the current high-speed movement, or press

any button.

Moving the Hands Out of the Way for Better Viewing

You can use the procedure below to temporarily move the hour and minute hands

out of the way to better view what is on the display.

• This operation can be performed in any mode. In the case of a setting mode

(setting ﬂ

ashing on the screen), the hands will move out of the way automatically,

even if you do not perform the below operation.

E-13

Rotary switch Operations

Important!

• With this watch, you do not need to pull out the rotary switch before

rotating it. Pulling on the rotary switch can damage the watch and

cause malfunction.

• To protect against unintended operation, nothing happens for the ﬁ

rst rotary

switch rotation. Continue rotating the rotary switch until the desired operation

is performed. If you do not perform any rotary switch operation for about three

minutes, you will need to rotate the rotary switch as described above before it

operates again.

• Note that the result of a rotary switch operation depends on the mode the watch is

in when you perform it.

• You can use rotary switch rotation to perform the operations described below.

− Timekeeping: Enter the Countdown Timer Mode

(when the countdown timer is stopped and reset to all zeros)

− World Time:

Change the World Time City

− Alarm: Scroll through the available alarm screens

E-12

General Functions (All Modes)

The functions and operations described in this section can be used in all modes.

• Auto Return Features

The watch will automatically return to the Timekeeping Mode if you do not perform

any operation for a certain amount of time, as described below.

Mode Approximate Elapsed Time

Alarm

3 minutes

Time or other setting mode

(information ﬂ ashing on the display)

Countdown Timer Mode

(entered from the Timekeeping Mode by

rotating the rotary switch)

10 seconds

E-11

Alarm Mode

Countdown Timer

Mode

World Time Mode

• If the timer in the Countdown Timer Mode is stopped and reset to the countdown

start time, you can also go directly from the Timekeeping mode to the Countdown

Timer Mode by rotating the rotary switch or pressing T. For more information,

see “Directly Entering the Countdown Timer Mode from the Timekeeping Mode”

(page E-40).

E-10

Selecting a Mode

• Press C to cycle between the modes as shown below.

• To return to the Timekeeping Mode from any other mode, hold down C for about

two seconds.

• In any mode (except a setting mode), press B to illuminate the display.

Timekeeping Mode Stopwatch Mode

How to remove the illumination function of Casio 5398 - GA-400? That is the light would not be lit on after button B is pressed. Submitted on 18-8-2022 at 11:48
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How to turn off the illumination function of a G-shock GA-400 permanently? That is, the light would not on even button B is pressed. Submitted on 16-8-2022 at 18:39
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Casio 5398 - GA-400 Manual

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