Swiss 18K gold half hunting cased lever watch Circa 1887

Gold finely engraved half hunter 
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A Swiss 18 carat gold half hunting cased keyless pocket watch made by Patek Philippe in Geneva, circa 1887. Sold on August 17th, 1889. The movement with a lever escapement. White enamel dial with Roman hours, an outer minute track and double spade hands. A vermicelle engraved case. Case, dial and movement signed, case and movement numbered. Comes with an Extract from the Archives confirming the production of this watch in 1887.
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Diameter: 33 mm
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Signed: Patek, Philippe & Co Genève