Omega Calibre 3220 A - Fitting the chronograph driving wheel on the basic movement; Timing

32
Fitting the chronograph driving wheel on the basic movement
Check the height of the wheel:
1/4
31.080 P
1411.039.71
0,24 mm
35.060 R
Check also concentric and plane rotation of the wheel.
Demagnetize the movement before measurements.
HU VD VL
Timing positions:
Timing
Limits (without chronograph):
Vibrations: 28’800 A/h
Lift angle: 51°
Power reserve: 40 hours
Maximum amplitude loss
with chronograph running: 40°
MM 0h: Average rate of the 3 positions at 0 hour.
(between 30 and 90 minutes after fully winding)
0h: The biggest rate difference of the 3 positions at 0 hour.
(between 30 and 90 minutes after complete fully winding)
MM 24h: Average rate of the 3 positions after 24 hours.
(between 23.5 and 25 hours after fully winding)
24h: The biggest rate difference of the 3 positions after 24 hours.
(between 23.5 and 25 hours after fully winding)
Ampl. 24h: Minimum amplitude in vertical position after 24 hours.
MM 0h 0h MM 24h 24h Ampl. 24h Power reserve
0 / +10 15 sec. 0 / +10 20 sec. 190° 40h
English
0,60mm