Authentic Breitling Navitimer B01 Chronograph, model AB0137211B1A1. Features a stainless steel case and silver stainless steel bracelet band. Equipped with a bi-directional rotating slide rule bezel. Powered by an automatic movement (Breitling Caliber 01) offering 70 hours power reserve. Includes date display via calendar at the 6 o'clock position, chronograph sub-dials for seconds, minutes and hours, hour markers, minute/second hands pointing to dials. Features a round case shape measuring 46mm in diameter and 13.6mm thick with a black dial face and scratch-resistant sapphire crystal glass. Comes with a transparent case back and is water resistant up to 30 meters (100 feet). Includes a 5 year WatchMaxx warranty.