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Operation Guide 3733 3734

MO0503-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 and keep it on hand for later reference

when necessary.

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

• 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.

Bright light

Electrical

energy

All

functions

enabled

LEVEL 1

LEVEL 2

LEVEL 3

Charge

Solar cell

(Converts light to

electrical power.)

Rechargeable battery

LEVEL 1

LEVEL 2

LEVEL 3

Some

functions

disabled

Dis-

charge

Battery charges in the light. Battery discharges in the dark.

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

• Frequent display illumination can run down the battery quickly and require charging.

The following guidelines give an idea of the charging time required to recover from a

single illumination operation.

Approximately 5 minutes exposure to bright sunlight coming in through a window

Approximately 50 minutes exposure to indoor fluorescent lighting

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

when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch’s Power Saving function

has turned off the display to conserve power.

• See “Power Saving” for more information.

About This Manual

• Button operations are indicated using the letters shown

in the illustration.

• Most of the display examples in this manual show only

the digital display, without the analog hands.

• Each section of this manual provides you with the

information you need to perform operations in each

mode. Further details and technical information can be

found in the “Reference” section.

Stopwatch 1/20

second dial

Minute handHour hand

Second

hand

24-hour dial

Digital display

Battery level dial

General Guide

• Press C to change from mode to mode.

• In any mode, press D to illuminate the face of the watch.

Timekeeping Mode

▲

Press C.

▲

Stopwatch Mode

Recall Mode

Hand Setting Mode

Alarm Mode

Dual Time Mode

• Entering the Stopwatch Mode causes the second hand and battery level dial hand to

move to the 12 o’clock position.

▲

Radio-controlled Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly.

The time calibration signal includes both Standard Time and Daylight Saving Time

(summer time) data.

• This watch is designed to pick up the time calibration signal transmitted in Germany

(Mainflingen) and England (Rugby).

Current Time Setting

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

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

when necessary.

• The first thing you should do after purchasing this watch is to specify your Home

Time Zone, which is the time zone where you will normally use the watch. For more

information, see “To specify your Home Time Zone” below.

• When using the watch outside the range of the Germany and England time signal

transmitters, you have to adjust the current time setting manually as required. See

“Timekeeping” for more information about manual time settings.

• The analog time of this watch is synchronized with the digital time. Because of this,

the analog time setting is adjusted automatically whenever you change the digital

setting. See “Analog Timekeeping” for more information.

To specify your Home Time Zone

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

differential value starts to flash, which indicates the

setting screen.

• The second hand will move at high speed to the 12

o’clock position, where it will stop.

• The GMT differential value indicates the time

difference in hours between Greenwich Mean Time

and the currently selected time zone.

• The DST indicator indicates that Daylight Saving Time

(summer time) is turned on for the currently selected

time zone.

DST indicator

GMT differential value

2. Use D (+) and B (–) to select the time zone you want to use as your Home Time

Zone.

• The GMT differential values for major cities in the Western Europe time zones are

shown below. Note that if the time zone you selected is in Daylight Saving Time

and the signal receiving indicator (

) is on the display (indicating that the watch

has received a signal and has adjusted its GMT differentials for Daylight Saving

Time), you must select the GMT differential values shown in the parentheses.

+ 1.0 (DST + 2.0): Paris, Berlin, Milan, Rome, Amsterdam, Hamburg, Frankfurt,

Vienna, Barcelona, Madrid

+ 0.0 (DST + 1.0): London

3. Press A to exit the setting screen.

• The second hand will advance at high speed to the correct position in accordance

with the seconds count of the digital time, and resume normal movement from there.

• Normally, your watch should show the correct time as soon as you specify your

Home Time Zone. If it does not, it should adjust automatically after the next auto

receive operation (in the middle of the night). You can also perform manual receive

or you can set the time manually.

• Selecting +1.0 or +0.0 as your Home Time Zone automatically turns on auto receive.

When auto receive is turned on and you are within the reception range, the watch

will receive the time calibration signal automatically from the applicable transmitter

(in the middle of the night) and update its settings accordingly. For information about

the relationship between time zones (GMT differential values) and transmitters, see

“Transmitters”.

• See the maps under “Reception Ranges” for information about the reception ranges

of the watch.

• If you are in an area that does not use Daylight Saving Time (summer time), turn off

the DST setting.

• If A, D77.5, M60, or OFF starts to flash in place of the GMT differential value when

you hold down A in step 1 of the above procedure, press A again to exit the

setting screen. After that, press B and then perform step 1 again.

To display the digital time and last signal screen

• In the Timekeeping Mode, press A to cycle through the digital time screens as

shown below.

• In the Timekeeping Mode, press B to display the last signal screen. The last signal

screen shows the date and time of the last successful time calibration signal

reception.

▲

Press A.

Last Signal Screen

Day of week Month – Day

Press B.

Year Month – Day Hour : Minutes

PM indicator

Seconds

Receive time

Receive date

• The last signal screen remains on the display for about one or two minutes. After

that, the Timekeeping Mode screen reappears.

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal:

auto receive

and

manual receive

. The second hand stops at the 12 o’clock position

while time calibration signal reception is in progress. After reception is complete, the

second hand moves automatically until it matches the digital time.

• Auto Receive

With auto receive, the watch automatically picks up the time calibration signal five

times a day at 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. For more

information, see “About Auto Receive”.

• Manual Receive

Manual receive lets you start a time calibration receive operation with the press of a

button. For more information, see “To perform manual receive”.

Summary of content (7 pages)

PAGE 1
MO0503-EA Operation Guide 3733 3734 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 and keep it on hand for later reference when necessary. Bright light l l l l l l l l l l l Keep the watch exposed to bright light Solar cell The electricity generated by the solar cell of the watch is stored by a built-in battery.
PAGE 2
Operation Guide 3733 3734 Metal Band l l l l lll • The watch should not be on its side or facing the wrong way. • Proper signal reception can be difficult or even impossible under the conditions listed below. lll To perform manual receive 1. Place the watch on a stable surface so its top (12 o’clock side) is facing towards a window. 2. While any screen other than the last signal screen is on ll llllll the display in the Timekeeping Mode, hold down B for about two seconds until the watch beeps. 3.
PAGE 3
Operation Guide 3733 3734 To measure lap times 1. When the stopwatch display shows all zeros, press A to display the lap time screen (indicated by LAP). 2. Press B to start a time measurement. 3. Press A to record the time of the first lap. • This freezes the current lap time on the digital display for about five seconds, while measurement of the next lap time continues internally and elapsed time continues to be indicated by the analog hands.
PAGE 4
Operation Guide 3733 3734 Alarm Operation Daylight Saving Time (DST) The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, or until you turn the alarm off. The target alarm counts the time remaining from the current time in your Home Time Zone until the target alarm time.
PAGE 5
Operation Guide 3733 3734 About the Auto Light Switch Turning on the auto light switch causes the face to illuminate, whenever you position your wrist as described below in any mode. Note that this watch features a “Full Auto LED Light”, so the auto light switch operates only when available light is below a certain level. It does not illuminate the face under bright light.
PAGE 6
Operation Guide 3733 3734 • The current time setting in accordance with the time calibration signal takes priority over any time settings you make manually. • The watch is designed to update the date and day of the week automatically for the period January 1, 2000 to December 31, 2099. Setting of the date by the time calibration signal cannot be performed starting from January 1, 2100. • This watch can receive signals that differentiate between leap years and non-leap years.
PAGE 7
Operation Guide 3733 3734 Tachymeter Tachymeter bezel 200 80 70 360 ER 70 60 TACH YME T 10 If your watch has a tachymeter bezel, you can perform the steps below to calculate average speed after using the Stopwatch Mode to measure the amount of time that it takes to travel one kilometer (or one mile). • Never try to perform stopwatch operations while you are driving an automobile, riding a bicycle, or operating any type of vehicle. Doing so is very dangerous and can result in accident.