Breitling Navitimer Automatic Chronometer Watch | Model: NAVITIMER 1 B01 CHRONOGRAPH 46 | From Breitling Website: This classic Navitimer 1 features a generous 46 mm diameter accentuating its presence on the wrist and enhancing the originality of its design, while optimizing the readability of the dial and the circular aviation slide rule. Movement is chronometer-certified, high-performance self-winding chronograph caliber, Manufacture Breitling Caliber 01. A larger-than-life take on the legend. The strap is not the original. Includes box, case and all paperwork.