3810/3817
Fly-back function
Push-piece I
starts the chronograph
Push-piece II
resets the chronograph as well as the
elapsed minute and hour registers to
zero. As soon as push-piece II is
released, the chronograph starts to
run from zero for another time mea-
surement.
A day/night display
B 12-hour elapsed-time register
C sweep chronograph-hand
D small seconds-hand
E date
Important note
This chronograph is guaranteed water-
resistant to 10 bar (100 m), provid-
ed the crown is in position 1
(secured).
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