Casio G-Shock Classic GA-100-1A2ER manual

Casio G-Shock Classic GA-100-1A2ER
8.6 · 4
PDF manual
 · 4 pages
English
manualCasio G-Shock Classic GA-100-1A2ER

Operation Guide 5081

1
MO0911-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.
About This Manual
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.
Alarm Mode
Countdown Timer Mode
World Time Mode
Stopwatch Mode

General Guide

Press C to change from mode to mode.
In any mode (except a setting mode), press B to illuminate the display.
Timekeeping Mode
Press C.

Timekeeping

You can adjust the Home Time city date and time in the Timekeeping Mode.
Pressing D in the Timekeeping Mode will toggle lower left display between the
screens shown below.
D
Home City Date Home City Time
Date Seconds
Day of the week
Hour
Minutes
SecondsPM indicator
Day of the week
To set the time and date
1. In the Timekeeping Mode, hold down A for about three
seconds until the city code flashes on the lower right
display. This is the setting mode.
2. Use D and B to select the city code you want.
Make sure you select your Home City code before
changing any other setting.
For full information on city codes, see the “City Code
Table”.
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Hour
Minutes
City code
PM indicator
Seconds
3. Press C to change the flashing screen content in the sequence shown below to
select the other setting.

Seconds

12/24-Hour

Format

Hour

Minutes

DST

Month

Year

City Code

Day

Illumination

Duration

4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Change the city code
Toggle the DST setting between
Daylight Saving Time (
) and
Standard Time (
).
Use D (east) and B
(west).
Press D.
To do this: Do this:Screen:
5. Press A to exit the setting mode.
The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
Toggle between 12-hour ( ) and
24-hour ( ) timekeeping
Reset the seconds to
Change the hour and minutes
Change the year, month, or day
Toggle the display illumination
duration between 1.5 seconds (
)
and three seconds (
)
Press D.
Press D.
Use D (+) and B (–).
Press D.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down A for about three
seconds until the city code flashes on the lower right
display. This is the setting mode.
2. Press C. This will display the DST setting screen.
3. Use D to toggle the DST setting on and off.

DST off ( ) DST on ( )

The default DST setting is OFF ( ).
4. When the setting you want is selected, press A to exit
the setting mode.
The DST indicator appears to indicate that Daylight
Saving Time is turned on.
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DST indicator
12-hour and 24-hour timekeeping
With the 12-hour format, the PM indicator appears above the hour digits for times in
the range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
the PM indicator.
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.

Stopwatch

You can use the stopwatch to measure elapsed time, lap
times and split times. If you specify a distance value, the
stopwatch also will calculate and display speeds.
The digital display range of the stopwatch is 99 hours,
59 minutes, 59.999 seconds. The stopwatch continues
to run until you stop it. If it reaches the above limit, it will
restart the time measurement from zero.
The stopwatch operation continues even if you exit the
Stopwatch Mode. If you exit the Stopwatch Mode while a
stopwatch operation is in progress, the segments in the
upper right dial will appear and disappear sequentially
as stopwatch seconds are counted. This is to let you
know that a stopwatch operation is in progress.
All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C.
Speed hand
Important!
Check to make sure that the speed hand is not moving before you perform any
Stopwatch Mode button operation.
Specifying a Distance Value
You can use the procedure below to specify a distance value, if you want. If you
specify a distance value, the watch will calculate and indicate speed for certain
stopwatch operations.
The distance value represents kilometers, miles, or any other distance unit you want.
Specifying a distance value of 10.0, for example, can mean 10.0 kilometers or 10.0
miles.
No speed calculation is performed when 0.0 is specified as the current distance
value.
For lap time readings, you can specify either the lap distance (when all the laps are
the same distance) or the total race distance.
For split time readings, you can specify the total race distance only. Though the
watch will indicate a speed each time you take a split reading, they will be based on
the total race distance, and so they will not indicate actual intermediate split speeds.
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General
Casio
G-Shock Classic GA-100-1A2ER | GA-100-1A2ER
Watch
English
User manual (PDF)
Technical details
Stopwatch
World time function
Timer1/1min - 24h
Alarm function
Calendar
LED backlight
Accuracy±15 sec/month
Shockproof
Snooze function
Clock mode12h/24h
Water resistant depth200 m
Design
Watch glass typeMineral
Watch case materialResin
Band materialResin
Power
Battery typeCR1220
Battery life2 year(s)
Number of batteries supported1
Other features
Dimensions (WxDxH)51.2 x 16.9 x 55 mm
Weight & dimensions
Weight70 g
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