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.
Specifications
Case
Shape
Round
Glass
Sapphire Crystal
Case Back
Solid
Case Material
Steel
Bezel Material
Steel
Diameter
39.5MM
Water Resistance
100 M
Dial
Colour
Black matte with two different-coloured counters & an Hesalite counter
Power Reserve
60 H
Movement and Functions
Movement
Automatic winding
Caliber
El Primero 3604
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
