CH 28-520 C/522
Automatic Chronograph
Flyback chronograph featuring a central hand, 60-minute and 12-hour monocounter, and a date aperture. Dimensions are 30 mm by 6.63 mm, with 327 parts, 13 bridges, and 35 jewels. Power reserve lasts 45 to 55 hours, utilizing a 21K gold central rotor, Gyromax® balance, 28,800 vph (4 Hz) frequency, and Spiromax® balance spring under the Patek Philippe Seal. Chronograph: Column wheel.
Caliber Details
- Manufacturer
- Patek Philippe
- Base Movement
- Patek Philippe CH 28-520 C
- Type
- Automatic Chronograph
- Frequency
- 28800 vph
- Power Reserve
- 55 h
- Jewels
- 35
- Diameter
- 30.00 mm
- Display
- Analog
- Hands
- Hours, Minutes
