Calypso Watches DIGITAL IKM1100D Instruction Manual page 15

6. HOW TO SET THE ALARM, RINGING ON THE HOUR AND KEY TONE
NORMAL TIME ALARM-1 OFF ALARM-2 OFF ALARM-3 OFF RING ON THE HOUR OFF KEY TONE ON
RING ON THE HOUR ON KEY TONE OFF
ALARM-1 ON ALARM-2 ON ALARM-3 ON
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