Yes, it is a series 4. I brought everything (box, etc.) back to store today in case I wanted to get it replaced. I left not convinced that there was anything wrong.
Odd that I didn't have this kind of "ghostly" display on my older watch. Right now I think it is a combo of the way the screen/glass is shaped plus a slight film from grease/oil/life. I'll give it another good look tomorrow.
Thanks everyone!