Something like this happened to me on an old stainless steel series 4 or 5 back in the day, and even having apple care + at that time, support gave me a hard time to replace the watch since technically they said it was cosmetic. I had to tell them as a consumer, to me this is a defect since sapphire is not supposed to scratch and none of my mechanical watches with sapphire have scratches. Eventually she agreed to replace it under warranty, but gave me a hard time for quite a while during the call. The Apple rep in the store wasn't able to help so I was calling support on the phone while I was in the store. I understand there may be a coating or whatever over the screen that may scratch but that's not how sapphire is advertised when mechanical watches are sold (and one of my mechanical watches over the years had scratches), and neither should the Apple watch with sapphire screen scratch.
I would go in and explain that to the apple genius person and see if they would allow for a replacement, either due to a warranty exchange (which case would be great), or even with a surcharge for replacement (next best thing). They may have you call Apple support on the phone to discuss it. Good luck!
As far as Im aware, Apple doesn't do screen or replacements of any other components for Apple watch, they'll just swap it out for a refurbished watch that will look like new!
I would go in and explain that to the apple genius person and see if they would allow for a replacement, either due to a warranty exchange (which case would be great), or even with a surcharge for replacement (next best thing). They may have you call Apple support on the phone to discuss it. Good luck!
As far as Im aware, Apple doesn't do screen or replacements of any other components for Apple watch, they'll just swap it out for a refurbished watch that will look like new!