Swiss 18K gold US twenty-dollar coin watch Circa 1984

Gold lever coin watch by Vacheron & Constantin
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A Swiss 18 carat gold United States of America twenty-dollar coin watch, circa 1984. Lever movement, 17 jewels. Gilt dial with black hour batons. Concealed watch in a US twenty-dollar coin from 1904, the hinged cover activated through the band. Dial signed, case and movement signed and numbered. Comes with a Certificat d’Origine.
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Diameter: 34.5 mm
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Signed: Vacheron  & Constantin Genève Swiss
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Coin watches have been highly popular since the 1950s.