Ca. Ø67mm, ca. 195g, silver, pair case, outer case covered with tortoiseshell, inner case plain, remains of Hallmarks and numbering visible, No.376, maker's mark PR, extremely rare, early English verge movement, signed Francis Goodo, balance bridge decorated with faceted rock crystal,plete movement covered with an outer protective ring, this partly pierced and glazed, signed original champlevé dial, sun hands, intact.