An early 18th century pocket watch movement signed Lucas DeCaux

Lucas DeCaux, Norwich, an early 18th century pocket watch movement, with verge escapement, pierced silver balance cock decorated with foliate scrolls, dolphin heads, and grotesque mask, brass three arm balance, decorative square baluster pillars and blued steel screws, and roman numeral champleve dial with blued steel beetle and poker hands, with Sotheby's or Christie's sale tag dated July 21, 1975
Condition Report: dial with tarnish and minor losses to engraving infill, hands with minor pitting and oxide, movement with minor marks and scratches, balance cock with brass bushing, running