Compass on Watch is pointing wrong direction
A new Apple Watch 5 (well, new to me).
Has the silcone sport band on (not magnetic fastenings at all)
Sometimes, the compass is correct and pointing North when the top of the watch is facing North and the bottom of the watch is facing my body.
Then, moments later (as the watch goes into 'standby' with the dimmed face showing, it is roughly 180 degrees out.
I've gone to Settings > System Services but ALL options are greyed out (Apple Pay, Chrono-Core Framework, Compass Calibration, Device Management, Emergency Calls & SOS,Location-based Alerts, Motion Calibration & Distance, Networking & Wireless, Regulatory Domain, Setting Time Zone, Share My Location, System Customisation). Only 'Significant Locations' is able to be changed and is currently set to 'OFF'.
I'm puzzled, help required please.
RB
Apple Watch Series 5