Swiss rose gold, diamond and ruby set dress watch Circa 1954

Rose gold open faced lever watch by Patek Philippe
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A rare Swiss 18 carat rose gold, diamond and ruby set open faced keyless lever dress watch, circa 1954. Nickel finished jewelled lever movement. Silvered matte dial with diamond and ruby set hour markers, outer beady minute divisions and subsidiary constant seconds. Polished case, diamond and ruby set band and bow, snap on case back. Case, dial, and movement signed, case and movement numbered.
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Diameter: 43.5 mm
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Signed: Patek Philippe Genève