A window into the beating heart of the legendary El Primero
The CHRONOMASTER Open offers a view of the beating heart of the El Primero movement from the dial. Crafted in a sleek 40mm steel case, this version features a matte black dial with tricolour counters and a transparent counter for the running seconds, paired with a black cordura-effect rubber strap. Powered by the El Primero 3604 1/10th of a second automatic chronograph movement.
Specifications:
Movement
- El Primero 3604 Automatic
- Components: 269
- Frequency: 36,000 VpH (5 Hz)
- Power Reserve: approx. 60 hours
Functions
- 1/10th of a second Chronograph:
- – Central chronograph hand that makes one turn in 10 seconds
- – 60-minute counter at 6 o’clock
- – 60-second counter at 3 o’clock
- Hours and minutes in the centre
- Small seconds at 9 o’clock
Case
- Material: Stainless Steel
- Diameter: 39.5 mm
- Water Resistance: 10 ATM
- Dial: Black matte with two different-coloured counters & a translucent polymer counter
Strap
- Strap: Black “Cordura” effect
- Clasp: Stainless steel triple folding clasp
