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 silver 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.
Specifications
Case
Shape
Round
Glass
SAPPHIRE CRYSTAL
Case Back
Transparent Sapphire Crystal
Case Material
Steel
Bezel Material
Steel
Diameter
39.5 MM
Water Resistance
100 m
Thickness
13.6 mm
Dial
Colour
Silver matte with two different-coloured counters & an Hesalite counter
Hour Markers
Rhodium Plated Hour Markers with Super-LumiNova
Hands
Rhodium Plated Hands with Super-LumiNova
Chronograph
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
Power Reserve
60 h
Movement and Functions
Movement
AUTOMATIC
Caliber
El Primero 3604
Movement Description
FREQUENCY : 36,000 VPH (5 HZ)
Functions
Hours and minutes in the centre Small seconds at 9 o'clock
