Casio G-Shock GW800-1V - User Manual

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 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. 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 ModeAlarm 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.

Casio G-Shock GW800-1V Specifications

General

Model	GW800-1V
Series	G-Shock
Brand	Casio
Type	Digital
Case Material	Resin
Band Material	Resin
Water Resistance	200 meters
Shock Resistance	Yes
Power Source	Solar
Radio Controlled	Yes
Countdown Timer	Yes
Multi-Band Atomic Timekeeping	Yes (Multi-Band 6)
World Time	Yes (29 time zones)
Stopwatch	Yes (1/100 second)
Alarm	Yes, 5 daily alarms
Backlight	LED
Battery Life	Approximately 10 months on full charge

Summary

Getting Acquainted with Your CASIO Watch

Importance of Light Exposure for Charging

Explains the necessity of exposing the watch to light for solar charging and maintaining battery power.

Troubleshooting a Blank Watch Display

Provides guidance on what to do if the watch display is blank, often due to the power saving function.

General Watch Operation Guide

Navigating Between Watch Modes

Details how to switch between different functional modes of the watch using the buttons.

Manual Display Illumination

Explains how to activate the watch's EL backlight manually for viewing in low light conditions.

Radio-controlled Atomic Timekeeping Setup

Setting Your Home City

Guides the user to select their Home City for accurate time synchronization with calibration signals.

Time Calibration Signal Reception Methods

Explains both automatic and manual procedures for receiving time calibration signals.

Signal Reception Information

Home City Codes and Transmitter Locations

Lists city codes and identifies the radio signal transmitters responsible for time synchronization.

Understanding Signal Reception Ranges

Details the geographical areas covered by time signal transmitters and factors affecting reception.

Monitoring Signal Reception Status

Using the Receiving Indicator

Explains how to use the indicator to check signal strength and find the best location for reception.

Interpreting Transmitter Indicators

Defines the indicators that display which radio signal transmitter is being used by the watch.

Managing Time Signal Reception

Performing Manual Signal Reception

Step-by-step instructions for manually initiating a time calibration signal reception.

Controlling Auto Receive Function

Guides on how to turn the automatic time calibration signal reception on or off.

Checking Latest Reception Results

Details how to view the outcome of the most recent time calibration signal reception.

Signal Reception Troubleshooting

Common Reception Problems and Solutions

Addresses issues like failed manual reception or incorrect time settings after signal reception.

World Time Mode Operations

Viewing and Changing City Times

Explains how to view times in different cities and toggle between Standard and Daylight Saving Time.

Countdown Timer Functions

Setting the Countdown Timer

Details how to set the start time for the countdown timer and use its alarm function.

Alarm and Hourly Time Signal Management

Setting and Operating Alarms

Guides on setting multiple daily alarms, snooze function, and testing alarm sounds.

Enabling;Disabling Alarms 2-5

Explains how to turn individual one-time alarms (2 through 5) on or off.

Alarm Operation and Control

Selecting Alarm Operation Modes

Details how to select between snooze alarm and one-time alarm settings for Alarm 1.

Managing Hourly Time Signal

Instructions for turning the hourly time signal on or off and its indicator.

Power Supply and Battery Management

Understanding the Power Supply System

Explains the solar cell and rechargeable battery system, and important usage precautions.

Battery Power Indicator Levels

Details the battery power indicator levels and their corresponding function status.

Illumination Features and Precautions

Manual Illumination Activation

Describes how to manually turn on the EL backlight for display illumination.

Auto Light Switch Functionality

Explains the auto light switch feature and precautions for its use to conserve battery.

Charging Safety Precautions

Warns about potential heat hazards when charging the watch in direct sunlight or high temperatures.

Charging Guide and Timekeeping Settings

Daily Charging Time Requirements

Provides a table showing daily light exposure times needed for sufficient power generation.

Setting Time, Date, and City Code

Guides on setting the current time, date, Home City code, and other timekeeping display options.

Reference and Mode Controls

Button Operation Tone Control

Explains how to turn the button operation tone on or off, indicated by the MUTE indicator.

Power Saving Functionality

Details how the power saving function conserves battery by entering a sleep state in dark conditions.

Advanced Watch Features and Precautions

Power Saving in Darkness

Describes the watch's behavior, including display and function status, when in darkness with power saving active.

Recovering from Power Saving Sleep State

Explains how to wake the watch from its sleep state by moving it or pressing buttons.

Atomic Timekeeping Precautions

Highlights potential issues affecting signal reception, such as electrostatic charge and ionosphere changes.

Illumination and Auto Light Switch Precautions

Provides warnings and tips for using illumination and the auto light switch to prevent battery drain and accidents.

City Code Reference Table

A table listing city codes, their GMT differentials, and other major cities within the same time zone.

Timekeeping Format Selection

Explains how to select between 12-hour and 24-hour timekeeping formats for display.