The crown has 3 positions:
1. Normal position (wearing position): when the crown is 
positioned against the case, the crown ensures that the watch is 
water-resistant. 
Occasional winding: if the watch has not been worn for 60 hours 
or more, wind it up with the crown in position 1.
Calibre 8511 (manual winding) 
Winding: turn the crown forward until it stops. 
2. Time zone and correcting the date: pull the crown out to 
position 2. Turn the crown forwards or backwards; the hour hand 
 
moves forwards or backwards in one-hour jumps. The date jumps 
forwards or backwards each time the hour hand passes midnight. 
Push the crown back to position 1. 
 
Note: the calibres 8400, 8401, 8912 and 8913 have no date indicator.
 
NB: when changing the time zone backwards, it is necessary to 
move the hour hand back past 7 pm to ensure the date changes.
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.
Manual & self-winding watch
Operating instructions2
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The crown has 3 positions:
1. Normal position (wearing position): when the crown is 
positioned against the case, the crown ensures that the watch is 
water-resistant.
 CALIBRES 8500, 8501, 8507, 8508, 8511, 8900, 8901 (fig. I)
 
CALIBRES 8400, 8401, 8912, 8913  (fig. VI) 
 CALIBRES 8601, 8611, 8902, 8903  (fig. II) 
 CALIBRES 8922, 8923  (fig. XII)