Patek Philippe caliber CH 28-520 C

Ref. CH 28-520 C

The Patek Philippe caliber CH 28-520 C is an automatic movement with a 55-hour power reserve, beats at 28,800 vph, and carries 35 jewels.

Chronograph with 60-minute and 12-hour mono-counter. Date. Diameter: 30 mm. Height: 6.63 mm. Parts: 308. Bridges: 13. Jewels: 35. Power reserve: Min. 45 hours - max. 55 hours. Central rotor in 21K gold, unidirectional winding. Balance: Gyromax®. Vibrations/hour: 28 800 (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.

Type: Automatic
Display: Analog
Power reserve: 55 h
Frequency: 28800 vph
Jewels: 35
Diameter: 30 mm
Complications: Chronograph, Column wheel, Date, Hours, Minutes