So I've had my series 3 for about 2 months (if that) and this has happened. I'm not sure how or why, since nothing out of the ordinary has happened to the watch. The face is smudgy in the picture because it's the only way you can get a good look at what I'm talking about. Apple chat support wasn't really helpful (they said it's a scratch, which obviously it isn't). I was hoping to just take it into the store but... no appointments, as usual. --- Post Merged, Mar 27, 2018 --- Well, I see a few posts from others where this has happened, but not any resolution as to whether it's normal or not.