How to clean my watch so this stops happening. I think it may be metal or plastic dust from my watch (like normal wear and tear), but I'm really not sure. I
Refinishing a Watch Bracelet – Watch Toolkit
How to Clean a Stainless Steel Watch (Karcher SC1) - YouTube
How to Polish a Stainless Steel Watch (Case and Bracelet) - Esslinger Watchmaker Supplies Blog