The Breitling Navitimer B01 Chronograph 46, reference AB0137241L1P1, features a 46mm stainless steel case with a green dial. It is powered by the in-house Breitling Caliber 01, a self-winding mechanical movement with a 70-hour power reserve. The watch includes a chronograph function with 1/4th second, 30-minute, and 12-hour counters, and a date display at 6 o'clock. The case is complemented by a black alligator leather strap with a stainless steel folding clasp. Water resistance is rated at 30 meters. The watch is protected by a cambered sapphire crystal, glareproofed on both sides, and has a transparent case back.