Swiss 18 carat gold $20 lever coin form watch Circa 1950

A Swiss 18 carat gold $20 coin watch, circa 1950. Cal. 10”’ nickel lever movement, 18 jewels. Gilt dial, black painted Breguet numerals, outer minute track and blued steel baton hands. Gold circular case concealed within a hinged 18 carat gold U.S. Twenty Dollar coin. Case, dial and movement signed. With an Extract from the Archives confirming sale oin 1952.
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Diameter: 35 mm