24h Ampl. maxi. 0h Ampl. 24h Power reserve (h)
Limits (without chronograph) -1 / + 9 12 15 310° 200° 40
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.
Timing positions:
Timing
Vibrations: 4 Hz (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)
∆ 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.
English
0,60mm
35
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