Blancpain Fifty Fathoms Automatique

Blancpain's Fifty Fathoms Automatique 5007 1130 B52B is a dive watch with a 38.2 mm steel case. The case measures 12 mm thick and takes a strap of 19 mm at the lugs. A sapphire crystal sits over the sunburst black dial, which carries a date window and a central seconds hand. The unidirectional rotating bezel allows elapsed-time tracking underwater, a practical detail for a watch built for diving. Inside is the self-winding calibre 1150, which stores a power reserve of 100 hours. The watch comes on a sail-canvas strap secured by a folding clasp. Blancpain rates the case to 300 metres of water resistance.