Whether you are working out, working or simply relaxing, wearing a watch helps you keep up with the time. Casio watches have a feature called the hourly time signal that, when activated, makes your watch beep at the top of every hour. You may wish to disable this feature if, for example, you may be recording an audio file that requires no background noise or do not want to be awakened by the beep. Disable this feature using your watch's menu options.
Press the "D" button, located on your watch's bottom-left corner, to switch to "Alarm" mode.
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Press the "E" button, located on your watch's bottom-right corner, to display the "Signal" screen.
Press the "C" button, located on your watch's bottom-left corner, to disable the hourly time signal. When disabled, the hourly time signal icon (a bell) will not be visible on the screen.