Blancpain Fifty Fathoms Mil-Spec L.E. 70th Anniversary Act 3 Bronze Gold 2024 (Unworn/Full-Set)

Blancpain Fifty Fathoms 70th Anniversary Act 3

Blancpain’s Fifty Fathoms line, introduced in 1953, is recognized as the first modern automatic dive watch and was originally developed for France’s elite naval combat divers. Its design prioritized reliability, legibility, and underwater safety, establishing the blueprint for all professional dive watches that followed. Over the decades, the Fifty Fathoms evolved while staying deeply connected to its military origins and technical purpose.

The Fifty Fathoms 70th Anniversary Act 3 is a modern reinterpretation of the early Mil-Spec models and completes the anniversary trilogy launched in 2023. Crafted from Blancpain’s proprietary Bronze Gold alloy, its 41.3mm structure blends historic functionality with modern metallurgy, offering durability, corrosion resistance, and a warm aesthetic that develops a controlled patina. The matte black dial, aged-toned lume, and signature moisture indicator pay tribute to the pioneering safety innovations introduced in the late 1950s, reaffirming its roots as a mission-ready instrument.

Inside, the watch is powered by the Cal. 1154.P2, a robust automatic movement with 100 hours of power reserve and enhanced magnetic resistance. Limited to just 555 pieces, the Act 3 is delivered on a NATO strap made from recycled fishing nets, reflecting Blancpain’s ongoing commitment to marine preservation. Together, these elements create a thoughtful fusion of heritage, engineering, and modern environmental awareness—an impressive continuation of the legacy that defined the original Fifty Fathoms.

Key Details To Consider

This Blancpain Ref. 5901-5630 NANA is presented in brand-new, unworn condition and remains complete with its original papers and warranty card dated 2024. Produced as a limited edition of only 555 pieces, this reference is fully sold out, discontinued, and no longer obtainable through authorized retailers. It retains the majority of its Blancpain Manufacture International Warranty, offering exceptional assurance for a collector seeking a rare and untouched example. Originally priced at $32,700 USD, this piece stands as a highly sought-after model that has become increasingly difficult to find in truly unworn condition.

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