My Ultra watch goes into compass mode all the time, I have to press the crown to see watch face but it goes back to compass after few seconds

Hello Karchimex,

Thanks for posting in the Apple Support Communities. We're happy to look into this with you. Is it possible that you have Compass added to your watch face? This is mentioned as an option in article, Change the watch face on your Apple Watch - Apple Support and in Use the compass on Apple Watch - Apple Support (section: Find your direction, elevation, incline, and coordinates).

Sine you're using the Apple Watch Ultra, could it be that you're enabling the Action button, that has been set up with Compass Waypoint as a function? This is covered here:

Choose a function for the Action button on Apple Watch Ultra

Let us know what you find, and we'll be happy to continue researching possible solutions.

Best regards.