Verge with champlevé dial in repousse pair cases Circa 1720

Silver champlevé dial verge with enamel and date
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An early English date verge with silver champlevé dial, in repousse silver pair cases set with an enamel scene, circa 1720. Full plate fire gilt movement with decorative baluster pillars. Fusee and chain with worm and wheel barrel set-up between the plates. Winding through the pierced and engraved bridge cock, pierced and engraved plate for the silver regulator disc. Plain gilt balance with blue steel spiral hairspring.  Silver champleve dial with an arcaded minute ring, Roman and Arabic numerals. Silver centre signed Decour – London, rectangular date aperture,  gilt hands.  Plain silver inner case, maker’s mark IR. Chased and engraved silver repousse outer case with cartouches of busts and animals.  In the centre of the back a fine polychrome enamel of a classically dressed couple.
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Diameter: 59 mm
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Signed: Graham London
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There is a different name on the dial which may in fact be the true maker.