According to the introduction of Pang Jiazhong's shop, Pang Jiazhong's name is Ponzi Time, and he is specifically engaged in the business operation mode and business (such as glasses) focusing on the sales, maintenance and partial production of watches and clocks. In the 20th year of Guangxu (1894), Pang Ziren, the founder of Ponzi era, exchanged his ancestral home Yuanbao Lane (now Jewelry Lane) and a considerable amount of silver for the old two-story street-facing building in Zhongshan Middle Road, and opened a building formerly known as Yuchang Lane. The watch shop, which was quickly renamed Time, adopted the lifestyle of "front shop and back workshop, living upstairs".