Breitling Top Time B31

Breitling's Top Time B31, reference AB3113A71L1X1, has a 38 mm stainless steel case. The case measures 10.31 mm thick, with a lug width of 20.1 mm. A cambered sapphire crystal, glareproofed on both sides, covers the green dial, and the caseback is screwed in with a sapphire window over the movement. Inside is the self-winding calibre B31, a manufacture movement with a power reserve of approximately 78 hours and chronometer certification. The dial carries a date aperture, central seconds and luminous hands. A green calfskin leather strap closes with a steel tang-type buckle. Rated to 100 metres, the case handles daily wear and the odd splash without concern.