Blancpain Fifty Fathoms Automatique

Blancpain's Fifty Fathoms Automatique 5015 1130 71S is a dive watch with a 45 mm steel case. The case measures 15.5 mm thick, and the lug width is 23 mm. A sapphire crystal covers the black dial, which shows a date window and a central seconds hand. A unidirectional rotating bezel surrounds the dial for tracking elapsed dive time. The self-winding calibre 1315 drives the watch, with a power reserve of 120 hours. A steel bracelet with a folding clasp completes the case. That case, rated to 300 metres, is built for real use underwater.