The Zenith Defy El Primero 21, which brought back the Defy name in 2017, utilizes the El Primero 9004 movement to measure 1/100th of a second. The collection expanded in 2020 with the addition of the Ultraviolet reference 97.9001.9004/80.R922.
Movement Type
Automatic Chronograph
Caliber
El Primero 9004Jewels
53
Reserve
50
Frequency
36000
Hands
Small Seconds
Shape
Round
Lug Distance
23.00 mm
Material
Titanium
Glass
Sapphire
Thickness
14.50 mm
Diameter
44.00 mm
Water Resistance
100.00 m
Dial Color
Skeleton