English gilt and porcelain open faced verge Circa 1750-1760

Porcelain and enamel verge watch by Williamson
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A fine and rare English gilt and porcelain enamel open faced verge pocket watch, circa 1750-1760. Gilt finished full plate jewelled verge movement, chain fusée, pierced balance cock, three armed balance wheel, jewelled end stone, dual regulators. White enamel dial with Arabic numerals. Case with polychrome enamel scene depicting two lovers in a landscape, outer border and bezel with cream enamel background, brown geometric design, gilt engraved edges, under hinged movement with polychrome enamel classical landscape. Movement signed.
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Diameter: 48.9 mm
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Signed: Williamson