The Zenith’s (not the electronics maker) Defy Xtreme Open comes out with El Primero chronograph movement and a black titanium case with a shock resistant transparent Hesalite glass displaying the watch’s intricate internals. Besides that it also sport a rotating bezel, helium release valve, and a bracelet made of brushed stainless steel with Kevlar inserts and carbon fiber central links.

[via Uncrate]