Swiss half pearl and diamond-set brooch watch Circa 1800/1870

Gold brooch watch
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A fine Swiss, 18K gold, enamel and pearl set pendant watch with a gold, enamel and rose diamond set brooch, circa 1800/1870. Made circa 1800, the brooch made circa 1870.
Gilt full plate movement, cylindrical pillars, fusee and chain, verge escapement, three-arm brass balance, pierced and chased continental type balance cock, silvered regulation disc.
Case with reeded band, the front and back covers overlaid with dark green guilloche enamel with half-pearl set borders.
White enamel dial with Arabic numerals and outer minute track. Blued steel Breguet hands.
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Diameter: 36 mm
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Signed: No name