Zenith
Calibre El Primero 400
Automatic chronograph
Specifications
- Maker
- Zenith
- Type
- Automatic chronograph
- In-house
- Yes
- Power reserve
- about 50 h
- Frequency
- 36,000 vph (5 Hz)
Sources
- Official Zenith retrieved October 18, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Zenith Chronomaster Revival El Primero A384 03.A384.400/21.M384 | 37 mm | 12.6 mm | — |