1939 Omega Marine: First Underwater Tested Wristwatch
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A rare Omega Marine wristwatch, circa 1939, the first watch tested to withstand underwater depths, design patented 1932. With an innovative case design, the watch is held within a secondary case that clipped onto the interior case. As the watch descended to deeper depths and pressure increased, the clip tightened to the case and improved watertightness. Two separate crystals protected the dial within. Originally promoted as successfully tested (at lake Geneva) to withstand a depth of 73 meters during a 30-minute time period. The steel case is marked and stamped with patent numbers and logos. Inner case back with serial 9392965. Case size: 2.4 x 3.4 cm. Later leather strap. Clip engraved with previous owner's name.
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- Circa - A Latin term meaning 'about', often used in the antique trade to give an approximate date for the piece, usually considered to be five years on either side of the circa year. Thus, circa 1900 means the piece was made about 1900, probably between 1895 and 1905. The expression is sometimes abbreviated to c.1900.
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