Zenith Defy

Zenith launched the original Defy in 1969 alongside the El Primero, with the ref. A3642: a 37mm steel case with a 14-sided faceted bezel, integrated 7-link bracelet, and a "ladder" textured dial. The watch was contemporary to the Royal Oak (1972) and Nautilus (1976), with Zenith three years ahead of Gérald Genta's Royal Oak in launching an integrated-bracelet sport watch. The 1969 Defy did not however achieve the same cultural impact as the Royal Oak and Nautilus; the line ran through the early 1970s and was discontinued during the Quartz Crisis.

The Defy name lay dormant for 40 years. In 2017, Zenith CEO Jean-Claude Biver (the same Biver who had previously built Hublot and revived Blancpain) revived the Defy as a deliberately experimental haute-horlogerie laboratory. The launch reference was the Defy Lab: a 44mm titanium watch with the Zenith Oscillator, a single-piece monolithic silicon escapement running at 15 Hz (108,000 vph), eliminating the conventional Swiss-lever escapement entirely. The Defy Lab was a 10-piece limited edition at CHF 30,000 each, all sold to research-watch collectors.

The Defy line expanded with multiple high-frequency references. The Defy 21 (2017) added a 1/100-second chronograph: the Cal. 9004 has two separate gear trains (one for time at 5 Hz, one for the chronograph at 50 Hz), allowing the chronograph hand to make a complete revolution every second and read 1/100-second intervals. The Defy Inventor (2019) commercialised the Zenith Oscillator at a more accessible price point. The Defy El Primero 21 followed; Defy Extreme ruggedised carbon and titanium variants reached the catalogue in 2021.

The Defy Skyline (ref. 03.9300.3620), launched 2022, brought the Defy back to the integrated-bracelet sport-watch positioning of the 1969 original: 41mm steel case with 12-sided bezel, integrated steel bracelet, sunray-pattern dial with a four-pointed star embossed at fine-grain density, El Primero 3620 movement (5 Hz) with 60-hour power reserve. The Skyline became the most-sold modern Defy and one of the most-discussed mid-range integrated-bracelet sport watches of the post-2021 era. Current Defy retail spans approximately CHF 11,500 (Skyline 41mm steel) to CHF 14,000 (Defy 21 1/100-second) to CHF 200,000+ (Defy Inventor or Defy Lab limited).