Apple Watch show information in the wrong language

If you see the wrong language for our app in Apple Watch, there is the easiest solution to solve it and to switch the Watch app to English:

1. Delete our app (from your phone) and reset the watch. (NOTE: Check that you logged in because you need to use the same login credentials.)
2. When installing the watch choose English as language and your native language as a region.
3. Re-install watch from a backup.
4. Install App in the Air. It now works in English on the watch!
5. Change language on the watch to the native language. Our app remains in English.