Contact the owner of the apple ID
Can apple support help me find the owner of the apple id attached to the Apple Watch?
No. It is a matter of privacy. How or where did you get this Apple Watch? If you found this watch, it would be best for you to return it to a store or establishment or the local police. The person who lost it may logically check there to see if it was turned in. You will not be able to use this Apple Watch.
