My Apple Watch series 4 just have a scratch (chip) I have no idea how this thing appeared. I always clean my watch after workout like swimming, running.I clean it with fresh water and then dry it with my microfiber cloth, I use the apple cleaning methods on the apple website. It’s definitely not a big deal, but when I switching the band i can see it, i feel disappointed when I paid lots of money for a watch. I used the Sport Loop band, and then this scratch appeared yesterday. Is this issue common, I can saw lots of people experience this. I also went to the Apple Store and the employee said that this is the cosmetic problem so they would likely not to replace it. But this is definitely not my fault.