Estimate 12,000 - 18,000 €
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steel, glazed screw back, unidirectional rotating bezel with 60 minutes division, screwed crown and pushers, original strap with steel deployant clasp.
blue, engine-turned centre, luminous indexes and hands.
as new, capable of running
In 1953 Blancpain was commissioned by the French military to develop a mechanical, automatic wind diver’s watch with a unidirectional bezel that featured a graded Bakelite insert to display the diving time. The watch was named "Fifty Fathoms", because it was water-resistant to a depth of 50 fathoms (1 fm = 1,829 m), i.e., 91.45 m.
Paying homage to the early diver’s watches, new and extravagant models were created, making use of avant-garde materials to set hitherto unsurpassed technical standards.