An ultra-smart tool watch, the Breitling Chronomat B01 chronograph is dedicated to performance. Its iconic Breitling calibre 01 movement will help you keep track of time to the smallest fraction.At A Glance Stainless steel Pilot bracelet 44mm stainless steel case with a uni-directional ratcheted bezel and 500m water resistance Cambered scratch-resistant sapphire crystal which is glareproofed on both sides Blue dial with baton hour markers Date window at 4.30 Three chronograph sub-dials Powered by the COSC chronometer certified Manufacture Breitling Calibre 01 self-winding mechanical movement Minimum power reserve of 70 hours