CH 28-520
Automatic Chronograph
A modified CH 28-520 chronograph movement displaying hours, minutes, and a seconds counter via a column wheel. It is equipped with a Spiromax balance spring.
Caliber Details
- Manufacturer
- Patek Philippe
- Type
- Automatic Chronograph
- Frequency
- 28800 vph
- Power Reserve
- 55 h
- Jewels
- 29
- Diameter
- 30.00 mm
- Display
- Analog
- Hands
- Hours, Minutes
