This 42mm Zenith El Primero Chronomaster Power Reserve is equipped with the caliber 4021 movement, featuring a silicon lever and escape-wheel visible through the dial opening and case back. A power reserve display is situated between the 5 and 8 o'clock positions.
Movement Type
Automatic Chronograph
Caliber
El Primero 4021Jewels
39
Reserve
50
Frequency
36000
Hands
Small Seconds
Shape
Round
Material
Stainless Steel
Glass
Sapphire
Thickness
14.05 mm
Diameter
42.00 mm
Water Resistance
100.00 m
Dial Color
Black