Gem Set Three Colour Gold and Enamel Verge

An early 19th century French verge in a decorative three colour gold case set with gems and an enamel portrait.  Full plate gilt fusee movement.  Finely pierced and engraved bridge cock with steel coqueret, plain three arm gilt balance with blue steel spiral hairspring.  Silver regulator dial with blue steel indicator.  Round pillars.  Gold engine turned dial with Roman numerals bordered by applied three colour gold decoration, gilt hands.  Gold open face case, the matted ground overlaid by three colour gold decoration and set with red gemstones and turquoise.  In the centre a small oval polychrome enamel portrait of a young woman holding a sheaf of wheat.