Fine Swiss rectangular shaped skeletonized watch Circa 1990

Gold, sapphire crystal and diamond set skeletonized lever by Corum
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A fine Swiss 18 carat gold, sapphire crystal and diamond set skeletonized pendant watch, circa 1990. Linear finely hand engraved scroll decorated 18 carat gold baguette shaped jewelled lever movement, set into the 18 carat rectangular shaped case with sapphire crystal sides and back, gold hands, winding crown to the back. Comes with an 18 carat gold and diamond set associated chain. Movement signed, case numbered.
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Width: 20 mm
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Overall length: 41.5 mm
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Signed: Corum