How to set up Apple Pay with my Apple Watch?
I want to know how to set up my apple watch to pay from my apple credit card
[Re-Titled by Moderator]
Apple Watch Series 9, watchOS 10
Please follow the instruction in the Apple Support article I linked below.
Set up Apple Pay - Apple Support
Here is another article that may be helpful in using Apple Pay on your Apple Watch.
Make purchases using Apple Pay - Apple Support