Blancpain Fifty Fathoms Automatique

Blancpain's Fifty Fathoms Automatique 5010 36B40 O52B is a dive watch with a 42.3 mm red gold case. The case measures 14.3 mm thick and carries a unidirectional rotating bezel above a sunburst blue dial. A sapphire crystal covers the dial, which shows the date and a central seconds hand. The self-winding calibre 1315 drives the watch, with a power reserve of 120 hours. This is a long run for an automatic movement. The case is fitted with a sail-canvas strap on a folding clasp. Blancpain rates the case to 300 metres.