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 Boutique-exclusive DEFY 21 Black & White edition foregoes colorful overtones and instead take on a strikingly achromatic palette; emphasizing the singular design and exceptional 1/100th of a second chronograph movement through heavily contrasting black and white tones.
- 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.