Swiss gold, diamond- and sapphire-set dress watch Circa 1980

Skeletonized lever dress watch by Audemars Piguet
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An elegant and thin Swiss 18 carat gold diamond- and sapphire-set open faced skeletonized keyless lever dress watch, circa 1980. Gilt-brass skeletonized movement, 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. Skeletonized dial, blackened gold feuille hands. Case 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. Case signed, movement signed and numbered.
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Diameter: 46 mm
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Signed: Audemars Piguet