Before using this guide, we recommend:

All settings are clearly explained and understandable.

How to set alarm on Baby-G BGA-151 Casio 5257-1

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

How to set alarm on Baby-G BGA-151 Casio 5257-2

  • To set a one-time alarm, display one of the screens indicated by an alarm number from AL1through AL4. To set the snooze alarm, display the screen indicated by SNZ.
  • The snooze alarm repeats every five minutes.

2. After you select an alarm, hold down A until the hour setting of the alarm time starts to flash, which indicates the setting screen.

  • This operation automatically turns on the alarm.

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.

  • When setting the alarm time using the 12-hour format, take care to set the time correctly as a.m. (no indicator) or p.m. (PM indicator).

5. Press A to exit the setting screen.

To turn an alarm on and off

How to set alarm on Baby-G BGA-151 Casio 5257-3

1. In the Alarm Mode, use D to select an alarm.
2. Press A to toggle it on (ON displayed) and off (OF displayed).

  • Turning on a one-time alarm (AL1through AL4) displays the alarm on indicator on its Alarm Mode screen.
  • Turning on the snooze alarm (SNZ) displays the alarm on indicator and snooze alarm indicator on the Alarm Mode snooze alarm screen, and in all other modes.
  • In all modes (except for the Alarm Mode), the alarm on indicator is shown for any alarm that is currently turned on.
  • The alarm on indicator flashes while the alarm is sounding.
  • The snooze alarm indicator flashes during the 5-minute intervals between alarms.

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