Getting error while pairing Watch ‘unable to verify update the watch os update couldn’t b verified because you are not connected to Internet’

You can update your Apple Watch software by checking for updates in the Apple Watch app on your iPhone.

Update your Apple Watch - Apple Support

Learn what to do if your Apple Watch says it can't verify your watchOS update because you're not connected to the Internet:

If you see 'Unable to Verify Update' when updating Apple Watch - Apple Support

If your Apple Watch displays a red ! after a software update, try this:

If you see a red "!" on your Apple Watch - Apple Support

If the update fails, see fireyjack's reply to:

apple watch 3 series won't update , w… - Apple Community

I was given a 7000 series Apple Watch - Apple Community