I just create a user configable watch face.
It runs well on App Setting Editor but when I upload to my watch, it does show setting on GCE
Can anyone advice which part I miss?
On the actual watch, you can only use app-setting form GCM/GE for things in the app store. What you can do is upload to the app store, but in the title include "do no approve", and you'll be able to download and test, but no one else will be able to download it. When you're happy, remove the "do not approve".