I watch series 3 will not update to watchOS 8.7.1

Hello G9182,

To provide the most relevant steps for your specific issue, we'll need to know more about what's happening when you try to update the Apple Watch. Are you receiving an error message? If so, what does it say?

In the meantime, the "Need more help with updating?" section of Update your Apple Watch has some general troubleshooting steps that can help address issues with updating.

"Try these steps:

1. Make sure that your Apple Watch is connecting properly to its charger. 
2. Restart your Apple Watch.
3. Restart your paired iPhone.
4. Try again to update your Apple Watch.

If the update won't start:

1. Open the Apple Watch app on your iPhone.
2. Tap General > Software Update.
3. Delete the update file.
4. Try again to update your Apple Watch.

Learn what to do if you see 'Cannot Install Update' when updating Apple Watch or if your Apple Watch says you need more available storage to install a watchOS update."

Regards.

Apple Watch series 3 stuck on preparing useless watch

Same issue facing me useless iWatch

no use this information