英文說明:Pocket watches, already in common use in Europe in the 16th century, were introduced by missionaries into China around the end of the Ming and the beginning of the Qing Dynasties. Around the middle of the Qing Dynasty, circa 1810, 伯爵 set up a factory in China. During the middle of the Qing Dynasty (late 17th century), pocket watches gradually became round and oval and were carried in the pocket of one’s suit.