Zenith Defy Xtreme Open Sea Titanium Chronograph 96.0527.4021. 47 mm titanium case. Titanium unidirectional rotating bezel. Black dial with luminous hands and two sub-dials. Black titanium band with titanium hidden butterfly clasp. Will fit up to 7.5 inch wrist. Automatic movement. Sapphire crystal glass. This watch is backed by a two year warranty.