Jacques Douro gold enamel self-winding chronograph watch Set with pearl, central seconds hand. Louis XV style case set with pearls, enamel bottom cover painted in oval frame with a picture of a vase placed on the lake, embedded in brown carved transparent enamel (FlinquÃ©) painted background, the border with gold foil carved / filigree enamel (PaillonnÃ©e Process decoration. About 1785 by Pierre Jacquier and Ransom in London, tailor-made for the Chinese market. Jake Dodd eccentric hour and minute plate pocket watch Equipped with a large second hand disc, circa 1785 Manufactured by Pierre Jacquel Ursula. Jacques Drog gold enamel warbler pocket watch Diameter 61 mm, gold material, enamel Warbler pocket watch, set with pearl and ruby. Louis XVI style case, the frame alternating with ruby â€‹â€‹and pearl inlaid, enamel cover the pastoral scene drawn from A.Conte named "Evening" (Evening) relief works. The timing bird device is driven by a sesame chain drive system and the bird song is controlled by a sliding piston organ that regulates the size of the sound. Using the "miniature whistle bagpipe" technology, the sound of a bird's song is exactly the same as that of a bird's song in nature. About 1785 Pierre Jacquier specializes in the Chinese market in London.