Breitling Top Time B31

Breitling's Top Time B31, reference AB3113281A1X1, has a steel case measuring 38 mm across and 10.31 mm thick. The case houses the self-winding Breitling B31 calibre, a manufacture movement with a power reserve of approximately 78 hours. A cambered sapphire crystal, glareproofed on both sides, covers the cream dial, and a display back reveals the movement inside. This is a chronometer, with a date shown through a dial aperture and luminous hands for legibility. The watch is fitted to a calf leather strap secured by a steel pin buckle. Water resistance is rated to 100 metres.