Blancpain Fifty Fathoms Chronographe Flyback

Blancpain's Fifty Fathoms Chronographe Flyback, reference 5085F 3630 52B, is a chronograph with a 45 mm red gold case. The case measures 15.5 mm thick and the lugs take a 23 mm strap. A sapphire crystal sits over the black dial, which carries a small seconds subdial and a date window. The self-winding calibre F185 drives the watch and stores 40 hours of power reserve. Its flyback function lets the chronograph reset and restart in one motion, without stopping the running seconds first. Blancpain fits the case to a sail-canvas strap closed with a folding clasp. Rated to 300 metres, the case handles depths well beyond ordinary diving use.