Omega 2503.80.00 - Self-winding chronograph

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English
Manual-winding chronograph
Operating instructions2
• Pusher B: reset (after a stop).
Note: resetting/zeroing of the sub dials must only be carried out after
the chronograph has stopped. Never push the chronograph’s two
pushers (A and B) simultaneously (calibres 3200, 3201).
Calibre 1866 – date and moon phase correction
– Correcting the date (small counter at 12 o'clock): press
corrector (C).
– Correcting the moon phase: press corrector (D) to move the disc
into the full-moon position. Then determine how many days have
elapsed since the last full moon (consult a calendar) and press the
corrector the equivalent number of times.
When the watch is running, the date and moon phase move forward
automatically.
Important: avoid pressing correctors (C) and (D) (date and moon
phase) if the watch is displaying any time between 7 and 12 o'clock
(am or pm).
Do not set the date by moving the hour hand past midnight, since
this may desynchronise the date and moon phase indicators.
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Self-winding chronograph
Operating instructions2
CALIBRES 3202, 3205 (fig. XV)
CALIBRE 3602 (fig. XIII or XIII
bis
)
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.
Chronograph functions:
• Pusher A: start – stop, start – stop, etc.
Timing to 1/8th of a second for up to:
– 14 minutes for diving function (calibre 3601)
– 12 hours for regatta function (calibre 3602)
• Pusher B: reset (after a stop).
Note: never push the chronograph’s two pushers (A and B) simulta-
neously (calibres 3202, 3205).
Regatta function (calibre 3602)
Based on a 10-minute start period, as used in the America’s Cup.
In addition to the counters for seconds, minutes and hours, this
movement has an indicator that displays the countdown to a regatta
start.
CALIBRES 3220, 3601 (fig. XIII)
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