Manual-winding chronograph
Operating instructions2
 CALIBRES 1861, 1863, 3201   (fig. XV)
 CALIBRES 3200, 3203   (fig. XVI) 
 CALIBRES 1866, 3604   (fig. XVII) 
The crown has 2 positions:
Watch functions:
1. 
Normal position (wearing position): when the crown is positioned 
against the case, the crown ensures that the watch is water-resistant.
  Winding:  turn  the  crown  forwards  until  it  stops  (DO  NOT 
OVERWIND).
 
Note:
 
do not wind the watch more often than is necessary. For 
a watch that is worn all the time, a single winding each day will 
ensure that it functions correctly.
2. Time setting: hours – minutes – seconds. Pull the crown out to 
position 2. Turn the crown forwards or backwards. Synchronise the 
seconds by pushing the crown back to position 1 to coincide with 
a given time signal.
Note:
 
calibres 1861, 1863, 1866 and 3604 do not have a ’stop- 
second’ mechanism. To synchronise, the crown should be gently 
turned backwards and pressure maintained to stop the seconds 
hand. Release when the display corresponds to the timing signal 
and push crown back to position 1.
Chronograph functions:
•Pusher A: start – stop, start – stop, etc.
  Timing to 1/6 of a second for up to 12 hours for the calibres 1861, 
1863, 1866, 3604. 
  Timing to 1/8 of a second up to 30 minutes for the calibre 3200, 
3203.
  Timing to 1/8 of a second up to 12 hours for the calibre 3201.
•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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Manual-winding chronograph
Operating instructions2
01-OMEGA_V14-I_EN.indd   24-25 16/05/12   14:01:19