Swiss 18k gold hunting cased keyless pocket watch Circa 1915

Gold full hunter lever by Ulysse Nardin
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A fine Swiss 18-carat gold hunting cased keyless lever pocket watch, circa 1915. Frosted gilt movement, 17 jewels, straight-line lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, index regulator. Gold hinged cuvette engraved with prize medals. White enamel dial radial Roman numerals, outer minute track, subsidiary seconds, and black spade hands. Engine-turned with polished borders, the front cover engraved with a foliate monogram in a shield-shaped cartouche. Dial, case, cuvette, and movement signed.
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Diameter: 55 mm
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Signed: Ulysse Nardin Locle