CH 28-520 HU
Automatic Chronograph
Self-winding movement featuring world time and chronograph functions, specifically the Caliber CH 28-520 HU. Includes a 30-minute counter and 24 time zone display, measuring 33 mm by 7.91 mm with 38 jewels and 343 parts. Features a Gyromax® balance, 28,800 vph (4 Hz) frequency, Spiromax® balance spring, and 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
- 38
- Diameter
- 33.00 mm
- Display
- Analog
- Hands
- Hours, Minutes, World Time
