Blancpain Fifty Fathoms Automatique

Blancpain's Fifty Fathoms Automatique, reference 5010 3640 O52A, comes in a 42.3 mm red gold case. The case measures 14.3 mm thick, with a lug width of 21.5 mm. A sapphire crystal sits over the sunburst blue dial. Inside is the self-winding calibre 1315, which runs with a power reserve of 120 hours. The watch shows central seconds and a date display, and Blancpain notes a secured movement construction built into this particular reference. It is fitted to a sail-canvas strap secured with a pin buckle. Rated to 300 metres, the case makes this a solid choice for a genuine dive watch.