Zenith
Calibre El Primero 3600
Automatic chronograph
Specifications
- Maker
- Zenith
- Type
- Automatic chronograph
- In-house
- Yes
- Power reserve
- about 60 h
- Frequency
- 36,000 vph (5 Hz)
Sources
- Official Zenith retrieved October 18, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Zenith Chronomaster Sport (steel) 03.3100.3600/21.M3100 | 41 mm | 13.6 mm | — |
| Zenith Chronomaster Original 03.3200.3600/22.C908 | 38 mm | 12.6 mm | — |
| Zenith Chronomaster Sport (18 ct rose gold) 18.3130.3600/01.R951 | 41 mm | 13.6 mm | — |
| Zenith Chronomaster Sport (steel and rose gold) 51.3102.3600/01.M3100 | 41 mm | 13.6 mm | — |
| Zenith DEFY Skyline Chronograph (steel) 03.9500.3600/51.I001 | 42 mm | 12.7 mm | — |
| Zenith DEFY Skyline Chronograph Skeleton 03.9500.3600/79.I001 | 42 mm | 12.7 mm | — |
| Zenith DEFY Skyline Chronograph (ceramic) 49.9500.3600/21.I001 | 42 mm | 12.7 mm | — |