Casio GX-56BB-1ER - User Manual

Operation Guide 3221
1
MO1006-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 rechargeable 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 covered only partially.
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Bright Light
Solar cell
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 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.
• 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 about 8 hours 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
• 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.
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.
Timekeeping Mode
Press C.
Countdown Timer Mode Stopwatch Mode
Alarm Mode
▲
▲
World Time Mode
▲
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▲
▲
Timekeeping
Press the A button to toggle the upper display between
the day of the week and date, and the currently selected
World Time city and time (Dual Time).
Use the Timekeeping Mode to set and view the current
time and date.
Read This Before You Set the Time and Date!
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 time, it is important that you first select
the correct city code for your Home City (the city where
you normally use the watch). 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 time and
date settings you configure in the Timekeeping Mode.
Current Time
PM indicator
Hour : Minutes
Seconds
Day of week
Dual Time
AA
Month – Day
▲
▲
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Dual timeCity code
To set the time and date
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press 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”.
3. Press C to move the flashing in the sequence shown below to select the other
settings.
Seconds
12/24-Hour
Format
Hour
Minutes
DST
Month
Year
City Code
DayPower Saving
Illumination
Duration
Button
Operation Tone
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• The following steps explain how to configure timekeeping settings only.
4. When the timekeeping setting you want to change is flashing, press D or B to
change it as described below.
Change the city code
Toggle between Daylight Saving Time
(ON) and Standard Time (OFF).
Toggle between 12-hour (
) and 24-
hour ( ) timekeeping
Reset the seconds to
Change the hour and minutes
Press D (east) and B
(west).
Press D.
Press D.
Press D.
Press D (+) and B (–).
Screen: To do this: Do this:
5. Press A to exit the setting screen.
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
To do this: Do this:
Change the year, month, or day
Toggle the button operation tone between
(on) and (off)
Toggle the illumination duration between
(approximately 1.5 seconds) and
(approximately 3 seconds).
Toggle between Power Saving on (
)
and off (
)
Press D (+) and B (–).
Press D.
Press D.
Press D.
Screen:
/
12-hour and 24-hour timekeeping
• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits 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
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
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 until the city
code starts to flash, which indicates the setting screen.
2. Press C and the DST setting screen appears.
3. Press D to toggle the DST settings ON and OFF.
DST off (
OFF
) DST on (
ON
)
4. When the setting you want is selected, press A to exit
the setting screen.
• The DST indicator appears to indicate that Daylight
Saving Time is turned on.
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DST indicator

Summary

Getting Acquainted

Keep the Watch Exposed to Bright Light

Ensures the watch receives sufficient light for solar charging and continuous operation.

Blank Display Explanation

Explains that a blank display indicates the Power Saving function has turned off the display.

Manual Overview

Provides guidance on how to understand the manual's layout and button indications.

General Watch Operations

Mode Switching and Illumination

Explains how to switch between watch modes and illuminate the display.

Timekeeping Function

Current Time Display

Details the display elements in Timekeeping Mode, including date, dual time, and seconds.

Setting Time and Date

Step-by-step guide to setting the watch's time and date, including city code selection.

Time Format Selection

Explains the difference between 12-hour and 24-hour formats and how to select.

Daylight Saving Time (DST)

Describes how to adjust the watch for Daylight Saving Time and the meaning of the DST indicator.

World Time Mode

Viewing Other City Times

Instructions for viewing world times in different cities and time zones.

Adjusting City DST Settings

How to change DST settings for individual world time cities.

Stopwatch Function

Stopwatch Measurement

Details on using the stopwatch to measure elapsed time, split times, and two finishes.

Countdown Timer Function

Countdown End Alert

Explanation of the audible alert when the countdown timer reaches zero.

Configuring Countdown Timer

Steps to set the start time for the countdown timer.

Using the Countdown Timer

How to start, pause, resume, and stop the countdown timer.

Alarm and Hourly Signal

Setting Alarm Times

Guide for setting one-time alarms and the snooze alarm.

Alarm Operation Details

Details on how alarms sound and how to stop them, including snooze operation.

Testing Alarms

Procedure for testing the alarm sound.

Alarm On;Off Control

How to enable or disable individual alarms and the Hourly Time Signal.

Display Illumination

Auto Light Switch Indicator

Explains the indicator for the auto light switch feature.

Manual Illumination

How to activate the display illumination manually using a button.

Illumination Settings and Safety

Setting Illumination Duration

Steps to select between 1.5 and 3 seconds for display illumination.

Auto Light Switch Operation

Details on how the auto light switch works and its activation conditions.

Auto Light Switch Warnings

Critical safety warnings regarding the use of the auto light switch and potential hazards.

Enabling;Disabling Auto Light

Instructions for enabling or disabling the auto light switch feature.

Power Supply and Battery

Battery Power Indicator Levels

Explanation of the battery indicator levels and their meaning.

Charging Precautions

Important advice to avoid overheating and damage during charging.

Charging Guide and Recovery Times

Tables showing daily light exposure needs and time to recover battery levels.

Reference and Button Tone

Button Operation Tone Control

How to turn the button operation tone on or off.

Power Saving and Specifications

Power Saving Function Overview

Explains the sleep state and how watch functions are affected by power saving.

Recovering from Sleep State

Methods to wake the watch from its sleep state.

Enabling;Disabling Power Saving

Instructions for turning the Power Saving function on or off.

Auto Return Function

Automatic exit from setting screens after inactivity.

Watch Specifications

General Specifications

Details on accuracy, timekeeping, formats, calendar, and other basic functions.

World Time and Alarm Details

Information on world time cities and alarm capabilities.

Stopwatch and Timer Specs

Measurement units and capacities for stopwatch and countdown timer.

Illumination and Power

Details on EL illumination, auto light switch, and power supply.

City Code Table

City Code Listings

A table listing city codes, names, and their UTC/GMT time differentials.

Precautions and Notes

Scrolling Functionality

How to use buttons to scroll through data on the display.

Timekeeping Settings Notes

Information on setting seconds, year, and the automatic calendar function.

World Time Calculation

How World Time is calculated based on Home City settings and UTC.

Illumination Precautions

Important notes regarding illumination visibility, sound, and battery impact.

Auto Light Switch Precautions

Advice on proper usage of the auto light switch to avoid accidental activation and battery drain.

Casio GX-56BB-1ER Specifications

General

Brand	Casio
Model	GX-56BB-1ER
Category	Watch
Language	English