Casio GST-210D-1A Operation Manual

MO1510-EA

© 2015 CASIO COMPUTER CO., LTD.

Operation Guide 5475

ENGLISH

Congratulations upon your selection of this CASIO watch.

E-1

About This Manual

• Depending on the model of your watch, display text

appears either as dark fi gures on a light background, or
light fi gures on a dark background. All examples in this
manual are shown using dark fi gures on a light
background.

• Button operations are indicated using the letters shown

in the illustration.

• Note that the product illustrations in this manual are

intended for reference only, and so the actual product
may appear somewhat different than depicted by an
illustration.

E-2

Contents

About This Manual …………………………………………………………………… E-2

Things to check before using the watch ………………………………………… E-3

Mode Reference Guide ……………………………………………………………… E-7

Timekeeping ……………………………………………………………………………E-12

Confi guring Home City Settings ……………………………………………………E-14

To confi gure Home City settings ……………………………………………… E-14
To change the daylight saving time (summer time) setting…………………E-16

Confi guring Current Time and Date Settings ……………………………………E-17

To change the current time and date settings ………………………………E-17

Hand Home Position Adjustment …………………………………………………E-21

To adjust home positions ………………………………………………………E-21

Checking the Current Time in a Different Time Zone ……………………………E-24

To enter the World Time Mode ………………………………………………E-25

E-4

To turn an alarm and the Hourly Time Signal on and off……………………E-38
To stop the alarm ………………………………………………………………E-38

Illumination ……………………………………………………………………………E-39

To illuminate the display manually …………………………………………… E-39
To change the illumination duration …………………………………………E-40
To enable or disable auto light…………………………………………………E-42

Button Operation Tone ………………………………………………………………E-44

To enable or disable the button operation tone ……………………………E-44

Low Battery Indication ………………………………………………………………E-46

Troubleshooting ………………………………………………………………………E-48

Specifi cations …………………………………………………………………………E-50

Things to check before using the watch

1. Check the Home City and the daylight saving time (DST) setting.

Use the procedure under “To confi gure Home City settings” (page E-14) to confi gure
your Home City and daylight saving time settings.

Important!

Proper World Time Mode data depends on correct Home City, time, and date settings
in the Timekeeping Mode. Make sure you confi gure these settings correctly.

2. Set the current time.

See “Confi guring Current Time and Date Settings” (page E-17).

The watch is now ready for use.

E-3

To confi gure World Time City and summer time settings …………………E-26
To swap your Home Time and World Time Cities …………………………E-28

Using the Stopwatch …………………………………………………………………E-29

To enter the Stopwatch Mode …………………………………………………E-29
To perform an elapsed time operation ………………………………………E-29
To pause at a split time …………………………………………………………E-30
To measure two fi nishes ………………………………………………………E-30

Using the Countdown Timer ………………………………………………………… E-32

To enter the Countdown Timer Mode …………………………………………E-32
To specify the countdown start time ………………………………………… E-32
To perform a countdown timer operation ……………………………………E-33
To stop the alarm ………………………………………………………………E-34

Using the Alarm ……………………………………………………………………… E-35

To enter the Alarm Mode ………………………………………………………E-35
To set an alarm time ……………………………………………………………E-36
To test the alarm ………………………………………………………………E-37

E-5

Mode Reference Guide

The mode you should select depends on what you want to do.

To do this: Enter this mode: See:

• View the current date in the Home City

• Confi gure Home City and daylight saving time (DST)

settings

• Confi gure time and date settings

View the current time in one of 48 cities (31 time zones)
around the globe

Use the stopwatch to measure elapsed time Stopwatch Mode E-29

Use the countdown timer Countdown Timer Mode E-32

• Set an alarm time

• Turn the hourly time signal on or off

Timekeeping Mode E-12

World Time Mode E-24

Alarm Mode E-35

E-6

Selecting a Mode

• The illustration below shows which buttons you need to press to navigate between

modes.

Countdown Timer Mode

Countdown Timer Mode

E-8

World Time ModeStopwatch Mode

World Time ModeStopwatch Mode

Alarm Mode

Alarm Mode

• To return to the Timekeeping Mode from any other mode, hold down C for about

two seconds.

• The mode dial hand indicates the watch’s current mode.

Timekeeping Mode

Timekeeping Mode

Mode dial hand

Mode dial hand

E-7

E-9

Operation Guide 5475

General Functions (All Modes)

The functions and operations described in this section can be used in all of the modes.

Direct Timekeeping Mode Access

• To enter the Timekeeping Mode from any other mode, hold down C for about two

seconds.

Auto Return Features

• The watch will automatically return to the Timekeeping Mode if you do not perform

any button operation for a particular amount of time in each mode.

Mode Name Approximate Elapsed Time

Alarm 3 minutes

Setting screen (digital setting fl ashing) 3 minutes

Initial Screens

When you enter the Alarm or World Time Mode, the data you were viewing when you
last exited the mode appears fi rst.

E-10

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

Digital meter Minute hand

Hour hand

Day of week

E-12

Month Day

Mode dial hand

Second hand

Confi guring Home City Settings

There are two Home City settings: actually selecting the Home City and selecting
either standard time or daylight saving time (DST).

E-14

City codeCity code

To confi gure Home City settings

1. In the Timekeeping Mode, hold down A until
appears in the lower display.

• When you rel ease A (aft er ADJ appears), SET will

be fl ashing in the upper display. This is the setting
mode.

• The watch will exi t the settin g mode automat ically if

you do not per form any ope ration for ab out two or
three minutes.

2. Use D (East) and B (West) to scroll through the
available city codes.

• For detail s about cit y codes, see t he “City C ode

Table” at the back of thi s manual.

ADJ

Scrolling

TheD and B buttons are used on the setting screen to scroll through data on the
display. In most cases, holding down these buttons during a scroll operation scrolls
through the data at high speed.

Digital Meter

• The digital meter indicates the seconds count in the Timekeeping Mode (page

E-12), World Time Mode (page E-24), and Timer Mode (page E-32). In the
Stopwatch Mode (page E-29) it indicates the 1/10-second count.

Digital MeterDigital Meter

• Each press of A in the Timekeeping Mode will change screen contents as shown

below.

Month-Day

DST indicatorDST indicator

3. Press C.

4. Press D to toggle the DST setting between daylight

5. After all of the settings are the way you want, press A to exit the setting screen.

• The DST indicator a ppears to indi cate that dayligh t saving time is tu rned on.

Note

• After you sp ecify a cit y code, the watch w ill use UTC* of fsets in the Wo rld Time

Mode to calcu late the current t ime for other t ime zones bas ed on the curren t
time in your H ome City.

* Coordinated Universal Time, the world-wide scientifi c standard of timekeeping.

The reference point for UTC is Greenwich, England.

Hour : Minutes Seconds

PM indicator

• This will cause DST to appear in the upper dis play

and the DST s etting of th e currently sel ected Home
City to appe ar in the lower d isplay.

saving time (ON) and standard time (

• Note that you c annot switch b etween sta ndard

time and dayli ght saving tim e (DST) whi le UTC is
selected as your Home City.

OFF

).

E-11

E-13

E-15

To change the daylight saving time (summer time) setting

3. Press D to toggle the DST setting between daylight saving time (ON) and standard

OFF

time (

4. After all of the settings are the way you want, press A to exit the setting screen.

E-16

2. Press C to move the fl ashing in the sequence shown below to select the other

E-18

).

• The DST indicator a ppears to indi cate that dayligh t saving time is tu rned on.

settings.

City Code
(page E-14)

Illumination
Duration
(page E-40)

1. In the Timekeeping Mode, hold down A until
appears in the lower display.

• When you rel ease A (aft er ADJ appears), SET will

be fl ashing in the upper display.

2. Press C.

• This will cause DST to appear in the upper dis play

and the DST s etting of th e currently sel ected Home
City to appe ar in the lower d isplay.

DST
(page E-16)

12/24-Hour
Format

Button Operation
Tone On/Off
(page E-44)

Seconds Hour

Day Month

ADJ

Minutes

Year

Confi guring Current Time and Date Settings

You can use the procedure below to adjust the Timekeeping Mode time and date
settings if they are off.
Changing the digital Home City data should cause the analog time setting to change
accordingly. If the analog time does not indicate the digital time, check the home
positions of the hands and make adjustments if necessary (page E-21).

To change the current time and date settings

City CodeCity Code

3. When the timekeeping setting you want to change is fl ashing, use D and/or B to
change it as described below.

Screen To do this: Do this:

1. In the Timekeeping Mode, hold down A until
appears in the lower display.

• When you release A (after

be fl ashing in the upper display.

Change the city code See page E-14.

Toggle between daylight saving time (ON)
and standard time (

Toggle between 12-hour (

24H

(

) timekeeping.

Reset the seconds to
(If the current seconds count is between 30
and 59, one is added to the minute count).

Change the hour or minutes

Change the year, month, or day

OFF

).

12H

00

ADJ

) and 24-hour

ADJ

SET

appears),

See page E-14.

PressD.

PressD.

UseD (+) and B (–).

will

E-17

E-19