Swiss 18 carat gold dead beat centre seconds lever Circa 1904

Gold half hunting cased keyless lever by Patek Philippe
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A very fine and rare Swiss 18 carat gold half hunting cased two train independent dead beat centre seconds keyless lever watch, circa 1904. Nickel finished jewelled two train lever movement, bimetallic compensation balance. Gold cuvette engraved Roberto Kohlschitter Genova. White enamel dial with Roman numerals and independent dead beat centre seconds. Plain case with inlaid blue enamel Roman numerals to the aperture in the cover with minute inner track, seconds start/stop button in the band. Dial signed, case, cuvette and movement signed and numbered.
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Diameter: 52 mm
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Signed: Patek, Philippe & Cie Genève