Swiss gold minute repeating lever pocket watch Circa 1917

Yellow gold lever by Patek Philippe
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A fine yellow gold minute repeating open faced keyless lever watch, circa 1917. Manual-winding nickel lever movement, minute repeating on two steel gongs, gilt dial, Breguet numerals, subsidiary seconds, blued steel hands, 18k yellow gold case, repeating slide to the band, case back engraved with an inscription, case, dial and movement signed.
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Diameter: 46 mm
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Signed: Patek Philippe & Co Genève
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With a Patek Philippe Extract from the Archives.