Swiss 18K gold open faced lever pocket watch Circa 1958

Gold open faced lever watch by Patek Philippe
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A Swiss 18 carat gold open faced lever pocket watch, circa 1958. Retailed by Gübelin. Sold on April 22nd, 1959. Keyless jewelled lever movement. Silvered guilloché dial with raised gold hour indexes and outer minute divisions, subsidiary seconds at 6 o’clock. Plain case, ribbed bezel, snap-on back. Dial signed by the watchmaker and retailer, case and movement signed and numbered. Comes with an Extract from the Archives and a leather Gübelin pouch.
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Diameter: 44 mm
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Signed: Patek Philippe Genève Gübelin