Swiss gold skeletonized octagonal lever dress watch Circa 1980

Gold, diamond-set and skeletonized dress watch by Audemars Piguet
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A very fine, elegant and thin Swiss 18 carat gold, diamond-set and skeletonized octagonal keyless lever dress watch, circa 1980. Gilt- brass movement, skeletonized and hand-engraved, 20 jewels, straight-line lever escapement, monometallic balance, adjusted for heat, cold, isochronism and 5 positions, shock absorber, self-compensating flat balance spring. Transparent dial with black Breguet hands. Gilt- brass movement, skeletonized and hand-engraved, 20 jewels, straight-line lever escapement, monometallic balance, adjusted for heat, cold, isochronism and 5 positions, shock absorber, self-compensating flat balance spring. The case band set with 59 round white diamonds, glazed on both sides, sapphire crystals, winding crown set with a cabochon sapphire. Movement signed, case signed and numbered.
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Diameter: 45 mm
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Signed: Audemars Piguet Genève