Fine Swiss gold open faced keyless lever watch Circa 1990

Gold lever by Vacheron Constantin
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A fine 18-carat gold open faced keyless lever pocket watch with matching chain, circa 1990: manual winding, 20 jewels.
White enamel dial, steel Breguet hands. 18k Yellow gold, snap-on case back. Case signed and numbered, dial and movement signed.
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Diameter 44 mm
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Signed: Vacheron Constantin Genève
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With Vacheron Constantin leather pouch, sales tag, matching chain and presentation box.