Blancpain Fifty Fathoms 5015D-1140-52B 45 mm Blue Dial

The Fifty Fathoms 5015D-1140-52B makes its scale explicit: a 45 mm stainless-steel case, 15.5 mm thick, with a blue sunburst dial, textile strap and 300-metre water resistance. The broad surface gives the dive-watch indications room to read clearly, while the textile material keeps the tool-oriented character intact. Its date display is integrated into a format built around underwater legibility.

Automatic calibre 1315 stores 120 hours of power and uses a central rotor, with 35 jewels and 227 parts in a 30.6 mm by 5.65 mm package. It runs at 28,800 vph, is adjusted in six positions and has hacking seconds. Through the back, the 18K red-gold rotor with NAC treatment sits above hand-bevelled edges, blued screws, Côtes de Genève and circular graining.