A pink gold open-faced quarter repeating musical watch, unsigned circa 1830

18k, gilt verge movement, plain brass three arm balance, playing on a disc 20 times, silence and play in the band, repeating on two gongs, gilt cuvette, gold dial with white enamel and Arabic cartouche numerals, outer enamel minute ring, engine turned center, plain polished circular case with reeded band, pendant repeat.