Not supported. Watches and jewelry are precious commodities, and there is no quality problem, so they will not be returned. 7 days is not supported, and there is no reason to return it. Nanjing, referred to as "Ning", was called Jinling and Jiankang in ancient times. It is the capital of Jiangsu, a sub-provincial city, a mega-city, the core city of Nanjing metropolitan area, and an important central city in eastern China determined by the State Council.