Omega SA 1680 Watch User Manual


 
21
English
Self-winding split seconds chronograph
CALIBRE 3600 (fig. XVII) • 3612 (fig. XVIII)
Watch functions (calibre 3600)
The crown has 2 positions:
1. Normal position (wearing position): when pushed
into the case, the crown ensures that the watch is
water-resistant.
2. Time setting: hour – minutes – seconds. Pull the
crown out to position 2. The seconds hand will stop.
Turn the crown forwards or backwards. Synchronise the
seconds by pushing the crown back to position 1 to
coincide with a given time signal.
Watch functions (calibre 3612)
The crown has 3 positions:
1. Normal position (wearing position): when pushed
into the case, the crown ensures that the watch is
water-resistant.
2.
Date setting: pull the crown out to position 2, turn the
crown backwards, then push the crown back to position 1.
NOTE: the date cannot be corrected between 9pm and
12.30am.
3. Time setting: hours – minutes – seconds. Pull the
crown out to position 3. The seconds hand will stop.
Turn the crown forwards or backwards. Synchronise the
seconds by pushing the crown back to position 1 to
coincide with a given time signal.
Occasional winding: if the watch has not been worn for
45 hours (cal. 3600) or 55 hours (cal. 3612) or more, wind
it up with the crown in position 1.
Chronograph functions:
Pusher A: start – stop, start – stop etc.
Timing to within 1/8th of a second for up to 12 hours.
Pusher B: reset (after a stop).