Swiss platinum open faced keyless lever watch Circa 1900

Platinum pocket watch by Patek Philippe & Co.
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A Swiss platinum open faced keyless lever pocket watch, circa 1900. The mechanical movement, marked Patek Philippe & Co. Geneva, features eighteen jewels, eight adjustments, and a lever escapement. The silvered dial, signed Patek Philippe Genève, includes Arabic numeral hour markers, a subsidiary dial for seconds, an outer minute track, and Breguet style hands. The watch is housed in a platinum brushed case with a snap on case back.
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Diameter: 44 mm
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Signed: Patek Philippe & Co., Geneva
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The case is in good condition overall, although it does have visible surface scratches throughout. Some patina is present around the outer edge of the case back, and the case band shows more noticeable wear around the 8 o’clock position. The dial is also in good condition overall, with a couple of minor dark spots near the centre arbour and on the subsidiary dial. The movement is currently running