English yellow gold, enamel and pearl-set watch circa 1800

Gold open faced pocket watch
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A yellow gold, enamel and pearl-set watch, circa 1796. Gilt full plate movement, verge escapement, plain three-armed balance, engraved balance cock, diamond endstone, signed and numbered gilt cuvette, white enamel dial, Arabic numerals, gold case, both bezels and pendant set with seed pearls, back with translucent pale blue enamel over an engine-turned ground surrounded by a band of dark blue translucent enamel over herringbone patterned engraving, cuvette signed Jonas Crofsley, Manchester, hallmarked for London 1796.
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Diameter: 58 mm
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Signed: Jonas Crossley  Manchester