A George IV 18ct gold keywind hunting watch

A George IV 18ct gold keywind hunting watch, the gold dial machine engraved with roman numerals, subsidiary seconds, the bezel decorated with three colour gold flowers and foliage, the verge movement, unsigned but numbered 437, the plain cock inscribed 'patent,' the engined turned case with foliate borders, maker GM, London 1828. Dial 46mm approx. With key.