For some unknown reason these awards come and go and it may well come back in a day or two.
The next steps would be ...
First you may want to make sure the software on the watch and iphone are both up to date to the same second level. eg iOS16.4.1 and watchOS 9.4
Update your iPhone or iPad - Apple Support and
Update your Apple Watch - Apple Support
If it is still misbehaving...
Unpair and set up again
Unpair and erase your Apple Watch – Apple Support (UK)
and then set up again - takes about 20 minutes
Set up your Apple Watch – Apple Support (UK)
If you've completed that troubleshooting and the issue is still not resolved, Contact Support before the end of April.
Click here > Contact - Official Apple Support
or phone numbers
Click here > Contact Apple for support and service - Apple Support