Breitling Navitimer B01 Chronograph 43

Breitling's Navitimer B01 Chronograph 43, reference AB0138241G1P1, is a chronograph in a 43 mm steel case. The case measures 13.69 mm thick, with a 22 mm lug width, and the dial sits under a cambered sapphire crystal treated with glareproofing on both sides. Inside is the self-winding Breitling 01 manufacture calibre, offering approximately 70 hours of power reserve and chronometer-certified accuracy. The silver dial has a date aperture and small seconds, and the sapphire display back shows the movement. An alligator leather strap closes with a steel folding clasp. Water resistance sits at a modest 30 metres, in keeping with its role as an instrument for calculation rather than diving.