Zenith
Calibre El Primero 3610
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 Original Triple Calendar 03.3400.3610/38.C911 | 38 mm | 14 mm | — |