Swiss gold watch set into 100 franc gold coin dated 1869 Circa 1960

Pink and Yellow gold lever coin watch 
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A Swiss 18K yellow and pink gold keyless coin watch, set into a 100 Franc coin dated 1869, circa 1960. Double case, coin opening with a push-piece concealed in the band, three-body hinged 18K pink gold inner case. Matte silver dial with painted Breguet numerals and blued steel Breguet hands. Rhodium-plated movement, Geneva striping decoration, 17 jewels, straight-line lever escapement, monometallic balance adjusted to heat, cold, isochronism and five positions, self-compensating flat balance spring. Dial, case and movement signed.
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Diameter: 35 mm
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Signed: Audemars Piguet  Genève
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Some dents on the case and the dial is oxidized.