Professional Endurance Pro watch, 44 MM, SuperQuartz, thermocompensated quartz .Chronograph :1/10th second, 30 minutes,Calibre Breitling 82. Carbon composite Case .Bidirectional Compass Scale Bezel. ratcheted.Non Screw-locked Crown, two gaskets.Sapphire crystal, glareproofed on both sides. Black Dial - White Rubber Strap with pin Buckle.