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.
Zenith
Chronomaster Open
Ref Number
03.3300.3604/21.M3300
Style
Sport
Diameter
39.5 mm
Movement
El Primero
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
- 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
Metal
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