Swiss 18 carat rose gold open faced lever watch Circa 1960

Keyless lever watch by Patek Philippe
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A Swiss 18 carat rose gold open faced keyless lever watch, circa 1960. Retailed by Gobbi Milano. Nickel finished lever movement stamped with the Geneva seal, 18 jewels, bimetallic compensation balance. Silvered dial with applied gold baton numerals, outer beady minute divisions and subsidiary seconds. Plain case, snap on back. Case and movement signed, dial signed by maker and retailer.
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Diameter: 47.5 mm
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Signed: Patek Philippe Genève Gobbi Milano