Swiss 18 carat gold US ten dollar coin watch Circa 1980

Gold coin watch by Patek Philippe
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A yellow gold ten dollar coin watch, circa 1980. Manual winding nickel lever movement, mono metallic balance, 18 jewels, silvered sunburst dial, painted black radial Roman numerals, black baton hands, 18k yellow gold case, solid snap on case back, concealed in a United States of America ten dollar “1926” coin, hinged coin cover activated through the case band at 2, case, dial, and movement signed.
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Diameter: 30 mm
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Signed: Patek Philippe   Genève
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Accompanied by a Patek Philippe Extract from the Archives confirming the year of manufacture in 1980 and sale on April 22nd, 1982.
Together with a small Patek Philippe leather holder and pouch.