Elegant Swiss 18k gold skeletonized keyless dress watch Circa 1980

Gold watch with diamond and sapphire-set
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A very fine Swiss, elegant and thin, 18K yellow gold, sapphire and diamond-set, skeletonized, keyless dress watch, circa 1980. Diamond and sapphire-set, shaped bezel and bow set with 59 round diamonds and 12 cabochon sapphires, glazed on both sides, cabochon sapphire-set winding crown. Transparent dial, blackened gold feuille hands. A gilt brass movement, skeletonized and hand-engraved, 20 jewels, straight-line lever escapement, monometallic balance, adjusted for heat, cold, isochronism and five positions, shock absorber, self-compensating flat balance spring. Case and movement signed.
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Diameter: 47 mm
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Signed: Audemars Piguet  Genève