Omega 2520 - Self-Winding Chronograph Operation

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Self-winding chronograph with or without date
Operating instructions2
CALIBRE 3202 (fig. XVIII)
CALIBRE 3330 (fig. XXV)
The crown has 2 positions:
Watch functions:
1. Normal position (wearing position): when the crown is posi
-
tioned against the case, the crown ensures that the watch is water-
resistant.
Occasional winding: if the watch has not been worn for 45 hours
or more, wind it up with the crown in position 1.
2. Time setting: hours – 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.
Calibre 3330 (fig. XXV)
Correcting the date: press the corrector (C) positioned at 10 o'clock.
Chronograph functions:
• Pusher A: start – stop, start – stop, etc.
Timing to 1/8 of a second for up to 12 hours.
• Pusher B: reset (after a stop).
Note: never push the chronograph’s two pushers (A and B) simulta-
neously (calibre 3202). The reset function should only be done after
the chronograph has stopped.
Warning: correcting is impossible between 8.30 pm and 11 pm.
CALIBRE 3220 (fig. XVI)
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