French gold repeating watch with jumping hours Circa 1825

Gold open faced cylinder pocket watch by Le Roy
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A very rare French 18 carat gold quarter repeating pocket watch with jumping hours, circa 1825. Very fine bar movement with cylinder escapement, repeating hours and quarter hours. Original white enamel dial with Roman numerals, Breguet hands and jumping hours hand. Engine turned à goutte case with Parisian gold punch 1819-1838. Special dome with original screwing and regulating device. Case signed and numbered.
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Diameter: 39 mm
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Weight: 41 g
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Signed: Le Roy Paris