Blancpain Fifty Fathoms 5085F.B-1140-52B

The Blancpain Fifty Fathoms Flyback Chronograph Quantième Complet Phase de Lune is a highly complicated model that combines a flyback chronograph, a complete calendar (day, date, month), and a moonphase display within the iconic 45mm Fifty Fathoms case. Its significance is its successful integration of multiple classical complications into a robust, 300m water-resistant dive watch. This feat of watchmaking is powered by the intricate Caliber 66BF8, which utilizes Blancpain’s patented under-lug correctors for easy adjustment of the calendar functions without a tool. The reference features a stainless steel case, a black dial, and a sapphire bezel. It showcases Blancpain’s ability to create a “grand complication” sports watch that is both luxurious and highly functional.