Authentic Breitling Navitimer B01 Chronograph with AB0138211B1A1 model number. Features a stainless steel case and matching silver-toned stainless steel bracelet band. Equipped with a bi-directional rotating slide rule bezel. The black dial includes luminous silver tone hands, index hour markers with minute markers along the outer rim, and three sub-dials displaying date (at 6 o'clock), chronograph seconds, minutes, and hours. Powered by an automatic movement utilizing Breitling Caliber 01 with a 70-hour power reserve. Water resistant up to 30 meters / 100 feet.