I own Multiple Apple Watches and the Digital crown is different and all of them. The dial on some of them are rather smooth when turning and others have slight friction.
However, there is a seal surrounding the crown internally. It is a possibility it could get pinched, I would just continue to monitor it and if it continues to get worse, contact Apple and they will likely replace it Being you are with in 14 days. (Or whatever retailer you purchased it from. )