Swiss 14k gold hunting-cased keyless lever watch Circa 1920

Gold keyless lever full hunter by IWC
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A very fine Swiss 14-carat gold hunting-cased keyless lever pocket watch, circa 1920. Frosted gilt movement, 17 jewels, some in screwed gold chatons, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, swan-neck micrometer regulator. Hinged cuvette. White enamel dial with painted Breguet numerals, outer minute track, sunk subsidiary seconds, and original gold double spade hands. Case engine-turned in a sunburst pattern to both sides, stepped and concave borders, lapidated polygon-edged band. Dial, case, and movement signed, case numbered.
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Diameter: 55 mm
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Thickness: 11 mm
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Signed: International Watch Co Schaffhausen