Perrelet P-321 Mode D'emploi page 11

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t
eChniCal data ConCerning
– Thickness of the basic movement, oscillating weight
included : 3.85 mm
– Fitting diameter : 25.60 mm
– Total diameter of the movement : 26.20 mm
– Vibrations / hour : 28,800 (4 Hz)
– Jewelling : 25 rubies
– Autonomy of the movement, fully wound : more than
40 hours
– Automatic winding by an oscillating weight mounted
on a ball bearing
– "Incabloc" shock-resistance system for the balance wheel
– Accurate time setting system
the movement
CALIBRE P- 321 |