Swiss 18K gold quarter repeating pocket watch Circa 1820

Gold open faced cylinder pocket watch by L’Hardy Dubois
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A fine, Swiss, 18K pink gold, quarter repeating pocket watch with cylinder escapement, circa 1820.
Gilt movement, standing barrel, cylinder escapement with steel escape wheel, plain three-arm balance, repeating the hours and quarters. Exceptional engine-turned silvered dial with Roman radial hours, outer minutes track and blued Breguet-style hands. Polished 18K pink gold, à-goutte, case, No. 1315, and signed dome.
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Diameter: 45 mm
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Weight: 54 g
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Signed: L’Hardy Dubois