Module No. 415/587/590/593/595/596 READING THE DISPLAY [Regular timekeeping [Daily alarm mode] [Stopwatch mode) mode] Time-signal-ON-mark setting mode] D Light 0% ¥ (Changeover between 12-hour and 24-hour formats) In regular timekeeping mode, with every push of @, the display is switched between 12-hour and 24-hour formats. ON OR OFF SETTING OF DAILY ALARM AND TIME SIGNAL [The alarm-ON[The alarm-ON[The alarm-ON[The time-signal mark and tidemark and tidemark only appears.