Patek Philippe caliber CH 28-520 C
| Brand: | Patek Philippe |
|---|---|
| Reference: | CH 28-520 C |
| Movement: | Automatic |
| Display: | Analog |
| Diameter: | 30.00 |
| Jewels: | 35 |
| Reserve: | 55 |
| Frequency: | 28800 |
| Date: | Date |
| Chronograph: | Chronograph, Column wheel |
| Hands: | Hours, Minutes |
Description
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.
