1, Radar official website: You can visit the radar watch official website to learn about its accessories and see if there are any back cover screws for sale.
2. Watch repair shop: You can go to the local watch repair shop and ask if there are any back cover screws suitable for radar watches. They will provide related accessories.
3, online market: you can search for the back cover screws of radar watches in major online markets, such as Amazon and Taobao, to see if there are any merchants offering sales.