Authentic Breitling Navitimer B01 Chronograph 46. Men's watch with 18kt rose gold case and black alligator leather strap equipped with folding clasp. Features a bi-directional rotating slide rule bezel, rose gold tone hands and index hour markers on the silver dial with minute markers around the outer rim. Includes date function at the 6 o'clock position along with three sub-dials displaying seconds, minutes passed hours (30 min), and hours elapsed (12 hr). Chronograph movement operates powered by Breitling Caliber 01 engine providing a 70-hour power reserve. Water resistant to 30 meters / 100 feet. Comes with a screw-down crown and scratch-resistant sapphire crystal on the round case measuring 46mm in diameter and 13.9mm thick, solid case back included. Covered by 5-year WatchMaxx warranty.