Swiss 18 carat yellow gold keyless pocket watch Circa 1880

Gold open faced lever
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A Swiss 18 carat yellow gold keyless pocket watch by Ulysse Nardin, Le Locle, circa 1880. An engine turned case back with a circle in the center, and a fluted case band. White enamel dial with radial Roman numerals, subsidiary seconds at 6 and blued steel Pear hands. A nickel plated movement, going barrel, gold screwed chaton on the central wheel, straight line equilibrated lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator. The dial, case and movement are signed.
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Diameter: 46 mm
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Weight: 85 g
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Signed: Ulysse Nardin, Le Locle