Swiss gold enamel and diamond set pocket watch Circa 1780

Gold, enamel and diamond-set verge watch
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A very fine and rare Swiss 18 Carat gold, enamel and diamond-set open faced quarter repeating verge pocket watch, circa 1780. Rose-cut diamond set bezel, the case back decorated with a finely painted enamel scene on a translucent royal blue guilloché ground depicting Juno, the chief goddess of Olympus being drawn in her chariot by two peacocks in a lozenge shaped rose-cut diamond set frame, outer four colour translucent and opalescent guilloché enamel border with gold paillon detail.
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White enamel dial with Roman hours and outer minute divisions, gold beetle & poker hands. A hinged gilt-brass full plate movement with cylindrical pillars, fusee with chain, verge escapement, plain brass three-arm balance, flat balance spring, gilt-brass continental cock with polished steel end-piece, silver regulation dial, repeating on a bell in the back of the case activated by depressing the pendant. Dial and movement signed.
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Diameter: 50.5 mm
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Signed: Chariot Ph. Terrot Genève
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The enamel decoration of the case of this watch is unusual in the use of four colours of guilloché enamel including opalescent colours in a single panel. This would have required great skill to achieve.
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Philippe Terrot was born in 1696, in Pont-en-Royans, Dauphiné, France and died in 1781, in Saconnex near Geneva. He was a refugee in 1700, arrived in Geneva and officially obtained Swiss naturalization in 1732. He took Jean-Pierre Thuillier in partnership between 1735 and 1750. They created high-quality gold watches decorated with enamel and porcelain, and also religious clocks.