Attractive Swiss 18k gold open faced lever watch Circa 1950

Gold keyless lever by Patek Philippe
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An attractive Swiss 18 carat gold open faced keyless lever pocket watch, circa 1950. Nickel finished lever movement, stamped twice with the Geneva Seal, 18 jewels. Silvered matte dial with applied gold Arabic and dagger numerals, outer bead minute divisions, subsidiary dial for constant seconds. Polished case, raised bezel, snap on case back. Case, dial, and movement signed, case and movement numbered.
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Daimeter: 47 mm
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Signed: Patek Philippe Genève Swiss