Breitling Premier B15 Duograph 42

The Breitling Premier B15 Duograph 42, reference RB1510251B1P1, measures 42 mm in rose gold with a case 15.35 mm thick. The black dial sits behind a cambered sapphire crystal, glareproofed on both sides. This is a chronograph built around a split-seconds mechanism, the Duograph function, allowing two elapsed times to be read from the central hands, and it also carries small seconds. Inside is the manual-winding calibre B15, a chronometer-certified manufacture movement with a power reserve of approximately 70 hours. A sapphire display back shows the finishing. The watch is fitted to a black alligator leather strap closed by a folding clasp in rose gold. The screwed-in caseback still allows a rating of 100 metres water resistance.