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Operation Guide 3050 3061

1

MO0605-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 batter y 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. Charging is reduced significantly if
the face is only partially covered.

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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 result in 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.

All 
functions 
enabled

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Charge

Rechargeable battery

Bright Light

Electrical 
energy

Solar cell
(Converts light to 
electrical power.)

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Some or all 
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 Function” for more information.

About This Manual

The operational procedures for Modules 3050 (A),3050
(B) and 3061 are identical. All of the illustrations in this
manual show Module 3050 (A).

Depending on the model of your watch, display text
appears either as dark figures on a light background, or
light figures on a dark background. All sample displays
in this manual are shown using dark figures on a light
background.

Button operations are indicated using the letters shown
in the illustration.

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.

Module 3050 (A)

Module 3050 (B)

Module 3061

Stopwatch Mode

Countdown Timer  Mode

Alarm Mode

General Guide

Press 

C

 to change from mode to mode.

In any mode (except when a setting screen is on the display), press 

L

 to illuminate

the display.

Timekeeping Mode

Press 

C

.

World Time  Mode

Radio-controlled Atomic Timekeeping

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

Supported time calibration signals: Germany
(Mainflingen), England (Rugby), United States (Fort
Collins), Japan.

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.

The first thing you should do after purchasing this watch
is to specify your Home City (the city where you
normally will use the watch). For more information, see
“To specify your Home City”.

PM
indicator

Home Time
(Hour : Minutes
Seconds)

Month – Day

Module 3050 (A)

Module 3061

Month – Day

When using the watch outside the areas covered by the time signal transmitters, you
will have to adjust the current time setting manually as required. See “Timekeeping”
for more information about manual time settings.

The U.S. time calibration signal can be picked up by the watch while in North
America. The term “North America” in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.

To specify your Home City

1. In the Timekeeping Mode, hold down 

A

 the city code

starts to flash. This is the setting screen.

2. Press 

D

(east) and 

B

(west) to select the city code you

want to use as your Home City.

Time calibration signal reception is supported when
any one of the city codes shown in the table below is
selected as your Home City.

City code

German/U.K. Signal

Japan Signal

U.S. Signal

City
Code
LIS
LON
MAD
PAR
ROM
BER
STO

City
Name

Lisbon
London
Madrid
Paris
Rome
Berlin
Stockholm

City
Code
ATH
MOW

City
Name

Athens
Moscow

City
Code
HNL
ANC
YVR
LAX
YEA
DEN
MEX

City
Name

Honolulu
Anchorage
Vancouver
Los Angeles
Edmonton
Denver
Mexico City

City
Code
YWG
CHI
MIA
YTO
NYC
YHZ
YYT

City
Name

Winnipeg
Chicago
Miami
Toronto
New York
Halifax
St. Johns

City
Code
HKG
BJS
TPE
SEL
TYO

City
Name

Hong Kong
Beijing
Taipei
Seoul
Tokyo

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3. Press 

A

 to exit the setting screen.

Important!

Normally, your watch should show the correct time as soon as you select your Home
City code. 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.

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 city codes and transmitters, see “Home
City Codes and Transmitters”.

Under factory default settings, auto receive is turned off for all of the following city
codes: 

MOW

 (Moscow), 

HKG

 (Hong Kong), 

BJS

 (Beijing), 

HNL

 (Honolulu), and

ANC

 (Anchorage). For details about turning on auto receive for these city codes, see

“To turn auto receive on and off”.

You can disable time signal reception, if you want. See “To turn auto receive on and
off” for more information.

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 (summertime), turn off
the DST setting.

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.

Auto Receive

With auto receive, the watch receives the time calibration signal automatically up to
six times a day. When any auto receive is successful, the remaining auto receive
operations are not performed. 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”.

Important!

When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o’clock side facing towards a window.
Make sure there are no metal objects nearby.

12 o’clock

or

Make sure the watch is facing the right way.

Summary of Contents for G-Shock GW800-1V

Page 1: ...ibration 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 City the city where you normally will use the watch For more information see To specify your Home City PM indicator Home Time Hour Minutes Seconds Month Day Module 3050 A Module 3061 Month Day When using the watch outside ...

Page 2: ...performed early in the morning while you sleep provided that the Timekeeping Mode time is set correctly Before going to bed for the night remove the watch from your wrist and put it in a location where it can receive the signal easily The watch receives the calibration signal for one to five minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times Avoid performi...

Page 3: ... operation starts automatically Pressing D while the Auto Start countdown is in progress starts the stopwatch immediately Countdown Timer You can set the countdown timer within a range of one to 60 minutes An alarm sounds when the countdown reaches zero All of the operations in this section are performed in the Countdown Timer Mode which you enter by pressing C Module 3050 A Module 3061 Minutes Se...

Page 4: ...t Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to light can cause rechargeable battery power to run down Make sure that the watch is exposed to bright light whenever possible This watch uses a special rechargeable battery to store power produced by the solar cell so regular battery replacement is not required How...

Page 5: ...of available city codes Reset the seconds to Change the hour or minutes Change the year month or day Toggle Power Saving on and off Press D Use D and B Press D Auto DST can be selected only while LIS LON MAD PAR ROM BER STO ATH MOW HKG BJS TPE SEL TYO HNL ANC YVR LAX YEA DEN MEX YWG CHI MIA YTO NYC YHZ orYYT is selected as the Home City code For more information see Daylight Saving Time DST below ...

Page 6: ...th each city s UTC differential The UTC differential is a value that indicates the time difference between a reference point in Greenwich England and the time zone where a city is located The letters UTC is the abbreviation for Universal Time Coordinated which is the world wide scientific standard of timekeeping It is based upon carefully maintained atomic cesium clocks that keep time accurately t...

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