Unusual French gold and enamel heart shaped watch Circa 1800

Gold heart shaped portrait watch
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An unusual French 18 carat gold, gilt and painted on enamel heart shaped watch, circa 1800. A heart shaped case, foliate chased borders and band, hinged and sprung bezel with translucent royal blue enamel reserves decorated with painted flowers and gold paillons within white enamel line borders, the back with a finely painted on enamel oval portrait of a young lady within a translucent royal blue enamel border painted with cherubs and flowers and with gold paillon decoration. White enamel dial with Arabic numerals, dot minute divisions and Arabic fifteen minute numerals, winding aperture at two and Gold beetle and poker hands. GiIt brass, full plate movement, fusee with chain, verge escapement with micrometric potence adjustment, plain three arm gilt balance, engraved continental clock, polished steel endplate. Movement signed.
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Dimension: 61 x 52 mm
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Signed: Regnault  Paris
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A fine and large example of a heart shaped watch dating from the turn of the 18th and 19th centuries. The enamel shows no indication of restoration.