Breitling Chronomat B01 Chronograph 42

Breitling's Chronomat B01 Chronograph 42, reference AB0158101C1S1, is a chronograph in a 42 mm steel case. The case measures 13.77 mm thick, with a screw-locked crown for added security. A sapphire crystal covers the blue dial, and a sapphire display back shows the movement. Inside runs the Breitling 01, a self-winding manufacture calibre with a chronometer certification and 70 hours of power reserve. The dial layout includes a chronograph with 30-minute and 12-hour counters, small seconds, and a date aperture. A blue rubber strap closes with a steel folding clasp. The screwed-in caseback backs a water resistance rating of 200 metres.