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Co-developed by the famous Jacques Cousteau, the Self Contained Underwater Breathing Apparatus (SCUBA) tank changed the face of diving for professionals and enthusiasts alike. Dubbed the “AquaLung”, a diver could stay under longer, go deeper and all with more freedom to carry out important tasks, or explore for enjoyment. Dive watches like this were originally sold under the Spirotechnique and Dato-Matic names and ultimately branded as AquaLung for the European market. The U.S Divers Co. co-branded them with U.S. Divers added to the bottom of the dial (for export to North America) throughout the 1960’s and 1970’s. This example is AuqaLung Ref. 1573-666 from the early 1960’s and uses an A. Schild case and is powered by a A. Schild signed Felsa Calibre 4004 movement. The 666 in the reference indicated a depth rating of 666 feet.
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