Fine Swiss 18k gold lever with five-minute repeater Circa 1880

Gold half-hunting cased pocket watch
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A very fine Swiss, five-minute repeating, 18K gold, enamel and pearl-set, half-hunting cased, keyless pocket watch, circa 1880. The front cover with royal blue champleve enamel radial Roman numerals surrounded by pearls, a minute track around the glazed aperture, polished band, and the back cover with blue enamel monogram surrounded by pearls. Hinged gold cuvette with engraved inscription.
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Gold dial with floral engraving to centre, radial black Roman numerals, outer minute dots, subsidiary seconds. Blued steel double spade hands. A matte gilt movement, 29 jewels some in gold screwed chatons, counterpoised straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring with a terminal curve, index regulator, repeating on gongs activated by a slide on the band. Case numbered.
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Diameter: 42 mm
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Signed: No Name
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The case is slightly rubbed and the dial is patinated.