Calypso Watches Digital IKM1005 Manuel D'instruction page 14

7. HOW TO USE THE CHRONOGRAPH
NORMAL TIME CHRONOGRAPH
BEFORE 30 MINUTES AFTER 30 MINUTES
1/100 SECONDS
1/10 SECONDS
MINUTES SECONDS HOURS
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START RUNNING
SECONDS
FIRST LAP
READ
MINUTES
24
STOP
SECOND LAP SECOND LAP LAST LAP
COUNTING READ COUNTING
25
RESET NORMAL TIME
LAST LAP STOP TIME
READ