18th Century Skeletonised French Verge

A late 18^th Century skeletonised French verge in a double sided stone set gold case.  Full plate gilt keywind fusee movement with three turned pillars.  The back plate skeletonised, slender engraved cock pierced barrel cover.  Three arm balance with stone set rim.  Decorative pierced silver mask over the plate set with stones.  Winding through the white enamel dial, decorated with white stones between the Roman and Arabic numerals. Decorative silver stone set hands.  Double sided gold consular case, engraved bezels set with stones, gold pendant and  bow.  Short gold chain with miniature key.