In 1953, Blancpain introduced the world’s first true diving watch, the Fifty Fathoms. Its name, Fifty Fathoms, indicated the watch’s purpose since it referred to a British depth measurement. A depth of 50 fathoms equals 91 meters or 300 feet, at the time the deepest depth that any watch could reach. With a rotating bezel and double-sealed crown, it was truly revolutionary at the time.
Later that year, Rolex introduced the Submariner, but only the Fifty Fathoms could be used for diving with compressed air because it had a unidirectional bezel.
Fifty Fathoms Homage Watches
The following homage watches offer a similarly classic look and feel for far less money than the 12000$ of the Fifty Fathoms: