Seiko CAL. H021 Instructions Manual page 21

STOPWATCH OPERATION
Before using the stopwatch, be sure to reset the digits to "00:00'00"000".
2 Accumulated elapsed time measurement
C
START
* Restart and stop of stopwatch can be repeated by pressing Button C.
3 Split time measurement
C
START
* Measurement and release of split time can be repeated by pressing Button D.
C
1 Standard measurement
C
D
START
C
RESTART
STOP
D
SPLIT
RELEASE
C
STOP
C
STOP
D
STOP
SPLIT
D
RESET
C D
RESET
C D
RESET
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