Use the procedure below to enable or disable the tone that sounds when you press a button.

• [MUTE] is displayed while the button operation tone is disabled.

1.Enter the Timekeeping Mode.

Navigating Between Modes

2.Hold down (A) for at least two seconds. Release the button when [SET] stops flashing.

3.Press (C) eight times so [KEY♪] or [MUTE] is flashing on the display.

4.Press (D) to toggle the button operation tone between enabled and disabled.

[KEY♪]: Operation tone enabled.

[MUTE]: Operation tone disabled.

5.Press (A) to exit the setting screen.