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Operation Guide 4792

MO0707-EA

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out

of your purchase, be sure to read this manual carefully.

Keep the watch exposed to bright light

The electricity generated by the solar cell of the

watch is stored by a built-in battery. Leaving or

using the watch where it is not exposed to light

causes the battery to run down. Make sure the

watch is exposed to light as much as possible.

• When you are not wearing the watch on your

wrist, position the face so it is pointed at a

source of bright light.

• You should try to keep the watch outside of

your sleeve as much as possible. Even if the

face of the watch is only partially blocked from

light, charging will be reduced significantly.

Bright light

Solar cell

Bright light

Electrical

energy

All

functions

enabled.

LEVEL 1

LEVEL 2

Charge

Solar cell

(Converts light to

electrical power.)

Rechargeable battery

LEVEL 1

LEVEL 2

Some

functions

disabled.

Dis-

charge

Battery charges in the light.

Battery discharges in the dark.

• The watch continues to operate, even when it is not exposed to light.

Leaving the watch in the dark can cause the battery to run down, which will

cause some watch functions to be disabled. If the battery goes dead, you

will have to re-configure watch settings after recharging. To ensure normal

watch operation, be sure to keep it exposed to light as much as possible.

• The actual level at which some functions are disabled depends on the

watch model.

• Be sure to read “Power Supply” for important information you need to

know when exposing the watch to bright light.

If the analog hands aren’t moving...

If the analog hands aren’t moving, it means that the power saving mode has

stopped them to save battery power.

• See “Power Saving” for more information.

• The hands also stop when the watch’s battery runs down.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for

any damage or loss suffered by you or any third party arising through the

use of this product or its malfunction.

About This Manual

• Button operations are indicated using the

letters shown in the illustration.

• Each section of this manual provides you with

the information you need in order to perform

operations in each mode. Further details and

technical information can be found in the

“Reference” section.

Hour hand

Minute hand

Date

Second hand

Stopwatch

second hand

24-hour hand

General Guide

Manual Receive

Time/Date Adjustment

Receive Status Check

Timekeeping Mode

▲

Press any button.

Hold down A for

about two seconds.

Press A.

Hold down A for

about five seconds.

Press A.Press A.

▲

Alarm Mode World Time Mode

Timekeeping Mode

Stopwatch Mode

With the

stopwatch at

00:00'00.00'',

press D.

▲

Press C.

Press D.

Press A.

Press B.

Press C.

Press B.

▲

Press D.

Press B.

▲

Press C.

Radio-controlled Atomic Timekeeping

Your watch receives a time calibration signal and

updates its time setting accordingly.

• This watch is designed to receive the time

calibration signal transmitted from Shangqiu

City, Henan Province, China (Call Sign: BPC,

Frequency: 68.5 kHz).

• Your watch will be able to receive the signal

whenever Beijing (BJS) is selected as its Home

City, and the watch is within range of the

transmitter. The initial factory Home City setting

of the watch is Beijing (BJS), so you will not

need to change the setting if you are in the

same time zone (GMT+8) as Beijing.

• As of July 2007, China does not use Daylight

Saving Time (DST). If China does go to the

Daylight Saving Time system in the future,

some functions of this watch may no longer

operate correctly.

Transmitter

Long-wave

time

calibration

signal

Watch

• See the information under “Signal Reception Troubleshooting” if you

experience problems with time calibration signal reception.

Chinese Time Calibration Signal

The Chinese time calibration signal (BPC) is maintained by the National Time

Service Center (http://www.ntsc.ac.cn/) of the Chinese Academy of Sciences,

and is transmitted from a transmitter (68.5 kHz) located in Shangqiu. The time

data of the Chinese time calibration signal is maintained by the National Time

Service Center.

• Note that transmission of the calibration signal may be interrupted

occasionally due to maintenance, lightning, etc.

Current Time Setting

This watch adjusts its time setting automatically in accordance with a time

calibration signal. You can also perform a manual procedure to set the time

and date, when necessary.

• Whenever you need to travel outside of the time zone where Beijing is

located (GMT+8), use the procedure under “To specify your Home City” to

change the watch’s Home City setting as required.

• When using the watch outside the range of the time calibration signal

transmitter, you have to adjust the current time setting manually as

required. See “Timekeeping” for more information about manual time

settings.

• Even if the time calibration signal is received correctly, there are some

times when the analog hands may not indicate the correct time. If this

happens, use the procedures under “Adjusting the Home Positions” to

check the home positions of the hands, and make adjustments as required.

To specify your Home City

1. In the Timekeeping Mode, press D to enter

the World Time Mode.

•

The stopwatch second hand will move to the

city code that is currently selected as the

World Time city.

2. Use D to move the stopwatch second hand

to the city code you want to use as your Home

City.

• Each press of D causes the stopwatch

second hand to advance clockwise to the

next city code.

• For full information on city codes, see the

“City Code Table”.

Stopwatch

second hand

Timekeeping

second hand

Summary of content (5 pages)

PAGE 1
MO0707-EA Operation Guide 4792 Getting Acquainted Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully. Keep the watch exposed to bright light The electricity generated by the solar cell of the watch is stored by a built-in battery. Leaving or using the watch where it is not exposed to light causes the battery to run down. Make sure the watch is exposed to light as much as possible.
PAGE 2
Operation Guide 4792 • If you want the watch to receive the Chinese time calibration signal, you should select BJS (Beijing, GMT+8) as your Home City. • The GMT differential value shown above indicates the time difference in hours between Greenwich Mean Time and the currently selected city code. 3. Hold down A and the timekeeping second hand will stop. Keeping A depressed, press D to swap the World Time and Home Time.
PAGE 3
Operation Guide 4792 Stopwatch Signal Reception Troubleshooting Problem Probable Cause The stopwatch • You changed the time setting manually. second hand is • You performed some button pointing at N operation during the auto (NO). receive operation. • The stopwatch is performing an elapsed time measurement operation. • Signal reception results are reset at midnight each day. • Radio interference is often present during the day time, which can interfere with calibration signal reception.
PAGE 4
Operation Guide 4792 Power Supply Minute hand Hour hand 24-hour hand Stopwatch minute hand Stopwatch hour hand Date 2. After confirming that the timekeeping second hand and stopwatch second hand are both at the proper home positions, press C. This will switch to hour hand and minute hand home position adjustment. • The hour hand and minute hand are at their proper home positions if they both move to 12 o’clock, and if the 24-hour hand is pointing at hour 24.
PAGE 5
Operation Guide 4792 Charging Guide After a full charge, timekeeping remains enabled for up to about five months. • The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.