Rare Swiss gold-plated World Time dress watch Circa 1960

Gold-plated open faced lever pocket watch by Gübelin
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A very fine and attractive Swiss gold-plated manual wind World Time pocket watch, circa 1960.
A solid, polished case with a bidirectional revolving bezel bearing the name of 65 locations worldwide with a fixed inner 24-hour chapter. Silver dial with applied yellow gold baton indexes and gold dauphine hands. Straight-line lever movement, 17 jewels, monometallic balance, flat balance spring with micrometre regulator. Dial and movement signed.
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Diameter: 52 mm
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Signed: Gübelin Swiss