French 18k gold dumb quarter repeating à toc pocket watch Circa 1780

Gold open faced cylinder watch 
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A French 18K gold and enamel dumb quarter repeating à toc pocket watch, circa 1780. The bezel is chased with a repeated guilloche pattern, the back with royal blue translucent guilloche enamel, a central varicoloured gold trophy, and an outer border to match the bezel. Gold dial with radial Roman numerals, outer minute divisions, engine-turned centre and blued steel Breguet hands. A gilt brass, full plate movement, cylinder escapement, three-arm brass balance, blued steel flat balance spring, index regulator on a silvered plate, repeating à toc activated by depressing the pendant. Movement and dial plate signed.
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Diameter: 38 mm
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Signed: Augustine More  Paris
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The hand are later replaced.