The Zenith Defy Extreme, reference 95.9100.9004/01.I001, features a titanium case with a diameter of 45mm. This automatic chronograph is powered by the Zenith caliber El Primero 9004, offering a power reserve indicator. The watch showcases a skeleton dial, allowing visibility of its intricate movement. Introduced in 2021, it is also certified as a chronometer, ensuring precision in timekeeping. The combination of these elements makes it a notable piece for collectors and enthusiasts alike.