Swiss 18k gold lever dress watch with 24-hour dial Circa 1930

Gold keyless lever by Ulysse Nardin
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A fine Swiss 18-carat gold open faced keyless lever dress watch with a 24-hour dial, circa 1930. Frosted gilt movement, 17 jewels, straight-line lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, swan neck micrometric regulator. Gold-hinged cuvette with engraved presentation inscription. White enamel dial with Breguet numerals, outer minute track with blue 24-hour Arabic numerals and original black Breguet hands. Polished case. Dial, case and movement signed, case numbered.
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Diameter: 49 mm
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Signed: Ulysse Nardin Locle & Genève