Blancpain Fifty Fathoms 5015D-1140-52B

The Blancpain Fifty Fathoms Automatique 5015D-1140-52B is a cornerstone of the modern Fifty Fathoms collection, first introduced in 2007. This reference was part of the significant relaunch that brought the historic 1953 dive watch into the contemporary era with updated dimensions and technology. Its significance lies in its successful fusion of heritage design cues with modern watchmaking. The watch is housed in a substantial 45mm stainless steel case and is distinguished by its deep blue “flinqué” (stamped guilloché) dial and matching blue sapphire bezel insert. The caliber 1315 is a robust, high-performance automatic movement featuring a silicon balance spring for amagnetic properties and an impressive 120-hour (5-day) power reserve, achieved through three series-coupled mainspring barrels. This reference represents the modern standard for the non-limited Fifty Fathoms, combining luxury finishing with true tool watch capability.