First of all WELCOME and - bless your heart for taking Watson into your heart and home, even though he looked so rough when you picked him up. You have a good heart.
He is just adorable
! Great face/expression. He does look like a yorkie to me...the one thing that looks a little different is that his fur is more 'fuzzy' than many yorkie coats...? But, I'll leave the verdict up to those who are better at discerning these things.
Again, welcome to YT!