User Manual

ManualsBrandsCasio ManualsTimepieces (Watches)Module No. 5424

Operation Guide 5424

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x If you do not perform any operation with the crown for about two minutes after

pulling it out, crown operations will become disabled and the hand will not move

if you rotate the crown. If this happens, push the crown back in and then pull it

out again.

x For details about city codes, see the “City Code Table” at the back of this

manual.

2. Rotate the crown to move the

Second Hand to the city

code you want to select as your Home City.

x Each time you select a city code, the

Hour Hand,

Minute Hand and

Day Indicator move to the

current time and day for that city code.

3. Push the crown back in to return to the Timekeeping

Mode.

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Conﬁ guring Home City Settings

The Home City is location where you will normally use the watch. You can choose

from a selection of city codes that represent 29 cities around the globe.

To conﬁ gure Home City settings

Note

x This watch does not have a city code that corresponds

to Newfoundland.

1. Pull out the crown.

x This will cause the

Second Hand to move to the

city code of the currently selected Home City.

x This indicates the city code setting mode.

TYO (TOKYO)

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Timekeeping

To enter the Timekeeping Mode, hold down C at least two seconds.

Hand Functions

Hour Hand

Second Hand

Minute Hand

Upper Dial Hand: Indicates the current hour in the

Home City time in 24-hour format.

Lower Dial Hand: Points to the day of the week.

Day Indicator

3241

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To select a mode

Each press of C will cycle between modes. The currently selected mode is indicated

by the

Lower Dial Hand.

World Time Mode

Stopwatch Mode

Timekeeping Mode

Alarm Mode

Countdown Timer Mode

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To do this: Enter this mode: See:

x Set an alarm time

x Turn the alarm ON or OFF

Alarm Mode

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Selecting a Mode

With this watch, everything starts from the Timekeeping Mode.

To determine the watch’s current mode

Check what the 5

Lower Dial Hand is indicating as shown

under “To select a mode” (page E-36).

To return to the Timekeeping Mode from any other

mode

Hold down C for at least two seconds.

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Mode Reference Guide

Your watch has ﬁ ve “modes”. The mode you should select depends on what you want

to do.

To do this: Enter this mode: See:

x Conﬁ gure Home City and DST (daylight saving time) settings

x Perform a time calibration signal receive operation

x Change the Auto Receive on/off setting

x Conﬁ gure time and day settings manually

x Check the current power level

Timekeeping Mode

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View the current time in one of 29 cities around the globe

x Conﬁ gure World Time City and summer time settings

x Swap the Home City and World Time City

World Time Mode

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Measure elapsed time and lap times, and recall lap times Stopwatch Mode

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Use the countdown timer

Countdown Timer

Mode

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Radio-controlled Atomic Timekeeping Precautions

x Strong electrostatic charge can result in the wrong time setting.

x Even if a receive operation is successful, certain conditions can cause the time

setting to be off by up to one second.

x The watch is designed to update its day setting automatically for the period from

January 1, 2000 to December 31, 2099. Updating of the day setting by signal

reception will no longer be performed starting from January 1, 2100.

x If you are in an area where signal reception is not possible, the watch keeps time

with the precision noted in “Speciﬁ

cations” (page E-80).

x The receive operation is disabled under any of the following conditions.

− While power is at Level 2 or lower (page E-17)

− While the watch is in the power recovery mode (page E-18)

− While the watch is in the function sleep state (Power Saving, page E-20)

− While the watch is in the World Time Mode (page E-50)

− While a countdown timer operation is in progress (page E-62)

x A receive operation is cancelled if an alarm sounds while it is being performed.

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To turn auto receive on and off

1. In the Timekeeping Mode, press B. The

Second

Hand will move to H (High), M (Medium), or L (Low)

to indicate the power level, and then it will indicate the

latest time calibration signal receive operation result.

2. Pull out the crown.

The

Second Hand will perform one full revolution and

then stop at the current on/off setting.

3. Rotate the crown to move the

Second Hand to the

setting you want.

x To turn on auto receive, select Y (YES).

x To turn off auto receive, select N (NO).

4. Push the crown back in to return to the Timekeeping

Mode.

Y (YES)

N (NO)

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To check the result of the latest receive operation

In the Timekeeping Mode, press B. The

Second Hand

will move to H (High), M (Medium), or L (Low) to indicate

the power level, and then it will indicate the latest time

calibration signal receive operation result.

x The

Second Hand will move to Y (YES) if the latest

receive operation was successful, or N (NO) if it was not.

After about 10 seconds, regular timekeeping will resume.

x Press B to return to regular timekeeping. The watch will

also return to regular timekeeping if you do not perform

any operation for about 10 seconds.

Note

x The

Second Hand will indicate N (NO) if you have

adjusted the time or day setting manually since the latest

receive operation.

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x Signal reception is not performed when the power level is L (Low).

Note

x To interrupt a receive operation and return to the Timekeeping Mode, press any

button.