A 17th century gilt and rock crystal verge pocket watch rebuilt with late 17th/early 18th century components

A 17th century gilt and rock crystal verge pocket watch rebuilt with late 17th/early 18th century components
Designed as a cross, the gilt verge movement with 18th century wheels and fusee, 17th century back and foliate engraved dial plate and later 18th century white enamel dial and hands, housed in original rock crystal back and later 18th century rock crystal hinged cover, case 52mm x 38mm
Dial plate signed J. Gaspard, Du Val for Jean Gaspard, (watch maker circa 1600)