ZENITH Defy Xtreme Open

Introduced in 2006, the ZENITH Defy Xtreme Open is a stylistic yet robust chronograph wristwatch that comes with specifications of a deep diving instrument. The combination of ultra modern materials such as titanium, Kevlar®, TR90 and a new alloy, Zenithium, makes this watch unbreakable and enable to explore the ocean depths up to 1,000 metres. It houses the powerful El Primero 4021 SX automatic movement that has been redesigned to meet the most extreme conditions. The movement has exclusive Zenithium Z+ bridges and the rotor is decorated with carbon inserts. The unidirectional, rotating graduated bezel in black titanium is decorated with 4 satin-finished titanium screws.


Technical details
Automatic, El Primero 4021 SX, calibre 13”’, 248 components
Exclusive Zenithium Z+ bridges (anti-shock)36,000 v/h, 50-hour power reserve, 39 jewels
Rotor decorated with carbon inserts

Hours, minutes, seconds, chronograph, power reserve


Black titanium, 46.5 mm
Unidirectional, rotating graduated bezel in black titanium, decorated with 4 satin-finished titanium screws
Curved sapphire crystal
Screw-down back, guilloché carbon fibre motif
Water-resistant to 1000 metres

Hesalite glass, carbon fibre layer and silver-coated dial flange
9-armed silvered helice revealing the heart of the movement
Luminescent rhodium-plated hands

Steel resistant to high temperatures, lateral Kevlar® inserts, triple folding clasp

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