Swiss gold watch with black robe chain and charms Circa 1860

Gold watch accompanied by original box 
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A very fine, thin Swiss 18K gold open faced pocket watch, circa 1860. Accompanied by the original fitted box, two keys, 32 cm. black robe chain with yellow gold-plated and black enamel accents. A polished case with a hinged gold cuvette. An engine-turned silver dial with Radial Roman numerals, outer minute track, gold subsidiary seconds dial and blued steel hands. A frosted gilt movement, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, and a swan-neck micrometre regulator. Dial and cuvette signed.
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Diameter: 54 mm
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Signed: Alliez, Bachelard & Terond fils  Geneva
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Spotted and patinated dial.
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Terond Alliez & Bachelard were working in Geneva early 19th century.