Zenith
Chronomaster Open 03.3300.3604/21.C822
39.5mmCurrent Production
Retail: $10,600
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 a black cordura-effect rubber strap. Powered by the El Primero 3604 1/10th of a second automatic chronograph movement.
Source: Zenith website, last updated Mar 2026
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