Swiss 18k gold quarter repeating à toc pocket watch Circa 1780

Gold Louis XVI verge pocket watch
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A fine and rare French, Louis XVI, quarter repeating à toc, 18K gold, enamel and rose diamond-set pocket watch, circa 1780. With outer gilt metal and shagreen protecting case. The bezel is chased with foliage highlighted with green enamel leaves and white enamel dots, the back overlaid with translucent pale green guilloche enamel, a central champlevé enamel rosette with a rose-cut diamond border, outer border to match the bezel.
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White enamel dial with radial Arabic numerals, outer dot minute divisions and Arabic 15-minute numerals. Gold Louis XVI hands. A matte gilt, full plate movement, fusee and chain, verge escapement, three-arm brass balance, flat balance spring, continental balance cock with polished steel endplate, silvered regulation dial. Movement signed.
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Diameter: 40 mm
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Signed: Lieutaud  Paris
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The case is slightly chipped and missing pearl(s)/stone(s).