Patek Philippe
Calibre CH 28-520 C
Automatic chronograph
Specifications
- Maker
- Patek Philippe
- Type
- Automatic chronograph
- In-house
- Yes
- Power reserve
- up to 55 h
- Frequency
- 28,800 vph (4 Hz)
Sources
- Official Patek Philippe retrieved October 16, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Patek Philippe Aquanaut 5968A 5968A-001 | 42.2 mm | 11.9 mm | — |
| Patek Philippe Aquanaut 5968G 5968G-001 | 42.2 mm | 11.9 mm | — |
| Patek Philippe Aquanaut 5968R 5968R-001 | 42.2 mm | 11.9 mm | — |
| Patek Philippe Nautilus 5980/60G 5980/60G-001 | 40.5 mm | 12.2 mm | — |