Details

In 1953, Blancpain forever changed the world of watchmaking with the creation of the Fifty Fathoms—the first modern dive watch, designed hand-in-hand with elite military divers. Seventy years later, the Fifty Fathoms 70th Anniversary Act 1 Series I pays tribute to that revolutionary legacy. This limited edition of only 70 pieces per region (210 total) revisits the original spirit of exploration, engineered for collectors and adventurers who understand the value of heritage fused with innovation. Crafted with a 42.3 mm stainless steel case, the watch features a unidirectional sapphire bezel for underwater timing precision and a black sunray-brushed Dial that reflects the depths it was built to conquer. Cream-colored Super-LumiNova® hands and markers recall vintage aesthetics while offering clear visibility in low light. A discreet date window between 4 and 5 o’clock maintains Dial symmetry without compromising utility. With 300 meters of water resistance, this timepiece is as capable beneath the waves as it is striking on the surface. Powering the watch is Blancpain’s legendary Caliber 1315, an automatic movement known for its five-day power reserve and anti-magnetic silicon balance spring. A sapphire case back reveals the beautifully finished mechanism within—an invitation to appreciate both function and form. The black NATO strap, made from recycled fishing nets, reflects Blancpain’s ongoing commitment to ocean conservation. The Act 1 Series I is more than a limited edition; it is a wearable chapter in the history of modern diving.