French gold watch set into 20 Dollar US coin dated 1904 Circa 1945

Gold coin watch by Cartier
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An extremely rare French, 18 carat gold twenty Dollar coin, fitted with a concealed watch, circa 1945. US Twenty Dollar coin, Liberty on one side, the blanc reverse engraved: REIMS MAY 7, 1945 .0241 (E.T.Q), hinged cover with catch on edge engraved inside LOUIS from BEDELL, inner case with and movement secured with four screws on an engine turned outer ring. Matte silver dial with radial black Roman numerals, outer minute track and blued steel Breguet hands. Rhodium plated movement, Geneva striping decoration, 18 jewels, straight line lever escapement, cut bimetallic compensation balance with eight adjustments, flat blued steel balance spring, index regulator. Dial and movement signed Cartier.
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Thickness: 4 mm
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Diameter: 34.5 mm
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Signed: Cartier  Paris
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Accompanied by the original fitted Cartier box
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Cartier was founded by Louis-François Cartier. He was born in 1810. In 1847 Louis-François was able to take over the jewellery shop of his teacher Adolphe Picard at 31 Rue de Montreuil, Paris. It is a French jewellery house specializing in making very luxurious jewellery such as rings, bracelets, earrings, necklaces and watches.