A LADY'S 18CT GOLD KEY WIND FOB WATCH

A LADY'S 18CT GOLD KEY WIND FOB WATCH, c.1850, the circular gilt dial with black enamelled Roman numerals enclosing scrolling foliate engraving on an engine turned ground, and engraved "Mottu, Geneve", the bar lever movement with blued steel screws and maker's name, with hinged dust cover, the case finely engraved with stylised anthemion panels enclosing a central foliate roundel, with key