Swiss pink gold ‘Prince Imperial’ pocket chronometer Circa 1940

Gold open faced lever by Rolex
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A very fine Swiss, thin, keyless, 18K pink gold Prince Imperial pocket chronometer, circa 1940. A polished and brushed case. Matte silver dial with applied pink gold Roman numerals and faceted bâton indexes, outer minute track, subsidiary guilloché seconds dial. Pink gold dauphine hands. A rhodium-plated movement, patented protecting escapement cap, 18 jewels, straight-line lever escapement, monometallic balance adjusted to six positions, self-compensating Breguet balance spring. Dial, case and movement signed.
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Thickness: 7 mm
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Diameter: 45 mm
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Signed: Rolex  Swiss made