Fine and rare Swiss Art Deco pink gold keyless watch Circa 1940

Pink gold open faced keyless watch by Patek Philippe
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A fine and rare Swiss Art Deco pink gold open faced keyless watch, circa 1940.
Brass rhodium gilt lever movement, cut bimetallic compensation balance, salmon dial, pink gold indexes, pink gold baton hands, engraved enamel signature, outer minute track, 18-carat pink gold Art Deco-style open faced case made by Eggly & Cie, case, dial and movement signed.
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Diameter: 47 mm
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Signed: Patek Philippe & Cie. Genève
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With an Extract from the Archives confirming manufacture in 1940 and sale in 1941 and a presentation case.