CH 28-520 C

AUTOMATIC • Analog • Chronograph: Chronograph, Column wheel Hands: Hours, Minutes

Jewels
35
Reserve
55 h
Frequency
28,800 vph (4.0 Hz)
Diameter
30 mm
Height
-

About this caliber

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.

Technical details

Movement
AUTOMATIC
Display
Analog
Jewels
35
Power reserve
55 hours
Frequency
28,800 vph (4.0 Hz)
Hands
Chronograph: Chronograph, Column wheel Hands: Hours, Minutes
Diameter
30 mm
Height
-
Parts
-
Patek Philippe CH 28-520 C - Movement Specifications & Details | WatchAtlas