Casio G-Shock AW591-2A Operation Manual

Casio Watches Operation Manual - G-Shock AW591-2A.
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Operation Guide 4778

MA0610-EA

About This Manual

• Button operations are indicated using the letters shown

in the illustration.

• For the sake of simplicity, the sample displays in this

manual do not show the analog hands of the watch.

• 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.

• 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.
For indicators, “On” is indicated by a dark indicator on
the positive (dark-on-light) display, and by a light
indicator on the negative (light-on-dark) display.

[Negative]

[Positive]

General Guide
• Press C to change from mode to mode.

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

the display.

Press     .

Timekeeping Mode

World Time Mode

Countdown Timer Mode

Stopwatch Mode

Alarm Mode

Hand Setting Mode 

Timekeeping

This watch features separate digital and analog timekeeping. The procedures for
setting the digital time and analog time are different.

• In the Timekeeping Mode, you can press D to change the display format as shown

below.

Day of week 

Month – Day 

Hour : 
Minutes 

Seconds PM 

indicator 

Day of the Week

Month – Day

Hour : Minutes

Press     .

Digital Time and Date
Use the Timekeeping Mode to set and view a digital display of the current time and date.
When setting the digital time, you can also configure settings for summer time
(Daylight Saving Time or DST), your Home City code (the code for the city where you
normally use the watch), the 12/24-hour format, and the illumination duration.

• This watch is preset with a number of city codes, each of which represents the time

zone where that city is located. When setting the digital time, it is important that you
select the correct city code for your Home City. If your location is not included in the
preset city codes, select the preset city code that is in the same time zone as your
location.

• Note that all of the times for the World Time Mode city codes are displayed in

accordance with the digital time and date settings you configure in the Timekeeping
Mode.

• After you correctly set your Home City time and date, you can set the watch up for

timekeeping with a different city code simply by changing the Home City code in the
Timekeeping Mode.

To set the digital time and date

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

seconds start to flash, which indicates the setting
screen.

2. Press C twice to move the flashing to the Home City

code setting (see the illustration below), and then use
B and D to select the 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”.

3. Press C to move the flashing in the sequence shown below to select the other settings.

Seconds

DST

Home City Code

Hour

Minutes

Day

Month

Year

12/24-Hour Format

Illumination Duration

4. When the setting you want to change is flashing, use B and D to change it as

described below.

Screen

To do this:

Reset the seconds to 00

Toggle between Daylight Saving Time (ON) and
Standard Time (OF)

Change the Home City code

Change the hour or minutes

Toggle between 12-hour (12H) and 24-hour
(24H) timekeeping

Change the year

Change the month or day

Select one second ( ) or three seconds (

)

as the illumination duration

Do this:

Press D.

Press D.

Use D (east) and B (west).

Use D (+) and B (–).

Press D.

Use D (+) and B (–).

Press D.

5. Press A to exit the setting screen.

• Resetting the seconds only (without changing the DST, Home City code, hour, or

minute setting) causes the analog minute hand setting to be adjusted automatically.

• See “Digital Time Daylight Saving Time (DST) Setting” below for details about the

DST setting.

• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is

applied in all modes.

• For details about illumination duration, see “Illumination”.
Digital Time Daylight Saving Time (DST) Setting
Daylight Saving Time (summer time) advances the digital time setting by one hour
from Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.

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