Module No. 3531
Indicators
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Displayed while an alarm is turned on.
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Displayed while the hourly time signal is enabled.
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Displayed while the watch is indicating summer time.
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Displayed while the button operation tone is disabled.
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Displayed while a date is registered with the day counter.
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Shows [A] (a.m.) or [P] (p.m.) for times displayed using 12-hour timekeeping.