Breitling Premier B09 Chronograph 40

Breitling's Premier B09 Chronograph 40, reference AB0930371G1P1, is a chronograph in a 40 mm steel case standing 13.08 mm thick. The manual-winding B09 calibre drives the watch, a chronometer-certified movement with small seconds and a chronograph function set against a silver dial. A cambered sapphire crystal covers the dial, glareproofed on both sides, and a sapphire display back on the reverse shows the movement's finishing. The chronograph totalises to 30 minutes with quarter-second precision, and power reserve runs to approximately 70 hours. An alligator leather strap, 20 mm at the lugs, closes with a steel folding clasp. Even with its non screw-locked crown, the case still carries a 100 metre rating.