Swiss 18K gold open faced skeletonized lever watch Circa 1985

Gold skeletonized pocket watch by Patek Philippe
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A Swiss 18 carat gold open faced skeletonized lever pocket watch, circa 1985. Lever movement, finely engraved, manual winding. Skeletonized dial. Case engraved, the bezel and bow also engraved with scrolling, snap-on back. Dial signed, case and movement signed and numbered. Comes with an Extract from the Archives.
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Diameter: 46 mm
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Signed: Patek Philippe Genève
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The present watch is a reference 894. This reference was launched in 1978 and produced through the early 2000s.