The DEFY 21 Ultraviolet is crafted in an entirely microblasted matte titanium case for an intriguing yet stealthy look, bringing out the lines and facets of the angular case under under a different light. The bridges and oscillating rotor of the El Primero 21 1/100th of a second chronograph movement are treated in a striking violet colour exclusively for the DEFY 21 Ultraviolet.
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.