Blancpain Fifty Fathoms 5025-6230-52A

This is the Fifty Fathoms Perpetual Calendar, a grand complication that represents a zenith of the collection. Its significance is in the daring placement of one of horology’s most delicate and prestigious complications—the perpetual calendar—within a robust 45mm, 300m water-resistant dive watch case. This reference is crafted from 18k white gold, offering a stealthy and luxurious presence. The classic black dial is skillfully adapted to show the day, date, month, leap year, and moon phase. It is powered by the self-winding Caliber 5554A with a 100-hour power reserve and features Blancpain’s patented under-lug correctors for safe, tool-free adjustments. This watch is a rare and powerful statement of technical mastery.