seapro Standard Model - Chronograph Timer Functions; Basic Chronograph Operation

Chronograph Timer Functions
A chronograph is a timekeeping device that measures the time intervals
independent of the regular time shown on the watch dial.
Use pushers A and B to operate the chronograph. While running, once the
chronograph second hand has completed one rotation, the minute counter will
jump ahead one minute. The tenth of a second hand moves to the relevant mark
only when the chronograph is stopped, not when the chronograph is running.
(Not all models have the tenth of a second timer).
Note:
The hands must be at zero before starting the chronograph. Press pusher B
to reset to zero. Never use the chronograph while the crown is pulled out.
Basic chronograph function:
1. Press pusher A to start.
2. Press pusher A again to stop.
3. Press pusher B to reset.
A
B
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