The CHRONOMASTER Open offers a view of the beating heart of the El Primero movement from the dial. Crafted in a sleek 39.5mm steel case, this version features a matte black dial with tricolour counters and a transparent counter for the running seconds, paired with an integrated steel bracelet. Powered by the El Primero 3604 1/10th of a second automatic chronograph movement.
Ref 03.3300.3604/21.M3300
Movement
| MOVEMENT | El Primero |
|---|---|
| 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 | Steel |
|---|---|
| DIAMETER | 39.5 mm |
| WATER RESISTANCE | 10 ATM |
| DIAL |
Black matte with two different-coloured counters & a translucent polymer counter |