Rare Swiss gold and enamel watch with visible balance Circa 1790

Gold, enamel and stone studded watch by Philippe Terrot
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A rare and fine Swiss gold, enamel and stones set open faced pocket watch with visible balance, circa 1790.
The case back is engine-turned with translucent cobalt blue enamelling, radial white enamel decoration, translucent blue enamel with yellow and green floral ornaments and stones, a central glass opening piece to show the balance and a stone studded bezel. Dark blue enamel regulator dial with polychrome enamel decoration depicting two lovers and a floral decor, a peripheral chapter ring with Arabic numerals, a regulator scale at 12 o’clock and cathedral hands. A fine fire gilt full plate movement, key wind, chain and fusee, solid movement pillars and a paste set five arm ring balance against a steely background, signed.
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Diameter: 48 mm
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Weight: 70 g
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Signed: Philippe Terrot à Genève