How to set alarm on G-Shock GA-310

Before using this guide, we recommend:

• Download official GA-310 Manual →
• Watch official 5357 GA-310 Manual Online →

All settings are clearly explained and understandable.

1. In the Alarm Mode, use D to scroll through the alarm screens until the one whose time you want to set is displayed.

• To set an alarm time, display the applicable alarm screen (AL1 through AL4 , or SNZ).
• is the hourly time signal setting (page E-28).
• The snooze alarm operation repeats every five minutes.

2. After you select an alarm, hold down A for about two seconds until the hour setting of the alarm time starts to flash. This is the setting mode.

• Holding down A will initially cause “Hold” to appear on the screen. Keep A depressed until “Hold” disappears.
• This operation turns on the alarm automatically.

3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
5. Press A to exit the setting mode.

Alarm Operation

The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, or until you turn the alarm off

• Alarm and Hourly Time Signal operations are performed in accordance with the current time in your Home City, as kept in the Timekeeping Mode.
• To stop the alarm tone after it starts to sound, press any button.
• Performing any one of the following operations during a 5-minute interval between snooze alarms cancels the current snooze alarm operation.

To test the alarm

In the Alarm Mode, hold down D to sound the alarm.

To turn an alarm on and off

In the Alarm Mode, use D to select an alarm.
2. Press A to toggle it on and off.

• Turning on a alarm ( AL1, AL2 AL3, AL4 or SNZ ) displays the alarm on indicator on its Alarm Mode screen
• In all modes, the alarm on indicator is shown for any alarm that currently is turned on.
• The alarm on indicator flashes while the alarm is sounding.
• The snooze alarm indicator flashes while the snooze alarm is sounding and during the 5-minute intervals between alarms.

To turn the Hourly Time Signal on and off

1. In the Alarm Mode, use D to select the Hourly Time Signal (SIG).
2. Press A to toggle it on and off.

• The Hourly Time Signal on indicator is shown on the display in all modes while this function is turned on.

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