Zenith

Chronomaster Open

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.

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REFERENCE NUMBER
REFERENCE NUMBER
03.3300.3604/21.C822
STYLE
STYLE
Sport
DIAMETER
DIAMETER
39.5 mm
MOVEMENT
MOVEMENT
El Primero


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    Specifications

    GENDER
    Men's
    Diameter
    39.5 mm
    MATERIAL
    Steel
    WATER-RESISTANCE
    10 ATM
    Calibre
    El Primero
    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
    Power Reserve
    min. 60 hours
    STRAP
    Rubber