Defy Extreme Double Tourbillon 95.9100.9020/78.I001

High-frequency Haute Horlogerie in its most rugged form: the DEFY Extreme Double Tourbillon features a 1/100th of a second chronograph in a titanium case and bracelet, with a 60-second tourbillon driving the time and a 5-second tourbillon driving the chronograph for ultimate precision.

Source: Zenith website, last updated Mar 2026