1/100th of a second Chronograph movement Exclusive dynamic signature of one rotation per second for the Chrono hand 1 escapement for the Watch (36,000 VpH - 5 Hz) ; 1 escapement for the Chronograph (360,000 VpH - 50 Hz) Certified Chronometer
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Zenith expresses high-frequency precision through light, colours and motion with the DEFY 21 Ultrablue, a striking rendition of the groundbreaking 1/100th of a second chronograph. Housed within its entirely matte microblasted titanium case with deep hues of grey, the open dial reveals the exceptional movement in cool tones of deep indigo and electric blue, extending from the bridges to the star-shaped oscillating rotor.
- 44 MMDiameter
A high-frequency revolution. The El Primero 21 is the culmination of over 50 years of perfecting the automatic chronograph at the Zenith manufacture. Equipped with two regulating organs and escapements, one beating at 5Hz for timekeeping, and the other at an incredible 50Hz to offer a true 1/100th of a second chronograph display, the El Primero 21 is the chronograph calibre of the 21st century.