English gold and translucent enamel pocket watch Circa 1790

Gold and enamel open faced verge
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A fine English 18 carat gold with royal blue translucent enamel pocket watch, circa 1790.
The bezel with a gold border, the back is decorated with translucent royal blue enamel over a guilloché background and with a gold border , surrounded by gold paillons .
White enamel dial with Arabic numerals, outer minute track with Arabic five minute numerals and gold hands. Matte gilt, full plate movement, fusee and chain, verge escapement, three arm brass balance, flat balance spring, pierced and chased cock with a diamond endstone, silvered regulation dial. Movement signed.
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Diameter: 48 mm
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Weight: 79 g
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Signed: Hamston & Prince, York
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Reference: 0020000