If a metal (stainless steel/precious metal) chain watch is worn for a long time, sweat and dirt will cause the pins at the link joints to rust and break unknowingly, and will also cause the watch strap to lose its original luster and accumulate on the watch links. The sludge at the seams will corrode the metal of the watch. Corrosion of the metal surface will have a great impact on the appearance of the watch.
The gaps between the chain links are easy for sweat and dust to react, and it is easier to harbor dirt. Especially after sweating in summer, dust, fibers and other substances accumulated between the chain links may be brought out. Therefore, it is possible that after wearing the chain belt, there will be black substance adhering to the wrist, and the other part may also be caused by the rust of the metal dissolved by sweat.
For daily maintenance of metal watch straps, you can regularly clean them with a soft brush such as a toothbrush and detergent (the crown and buttons must be locked before cleaning, and avoid the watch head), then clean the strap with clean water, and then use dry Wipe dry with a cloth, and then use a hair dryer to dry the moisture in the gaps.
Try to avoid strong pulling and bumping. For scratches and bumps on the watch chain, you need to go to Jinhua Watch Repair Service Center for cleaning, polishing and polishing.