... :OPP BagWatch fuction:Hour,minute,second,date,chronograph.We are tungsten, ceramic jewelry manufacturer in mainland China. We supply watches ... . We manufacture and export various of tungsten, ceramic Watches, rings, bracelets, which can be inlaid with gold, silver and diamond, as ... . So far, we are the most professional manufactory in tungsten and ceramic watches and rings field. we are confident in ...