Watch does not pair. It is stuck on the screen with circular display with “42mm aluminum case” on it
Apple Watch Series 3, watchOS 6
Question marked as
Did you try to force restart your Apple Watch by pressing the Digital Crown and the Side Button together for about 10sec, until the Apple Logo comes up again?
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If it seems like the pairing process has stalled — for example, the pairing animation remains on the screen for several minutes — resetting your Apple Watch might help:
- Press and hold the Digital Crown while your Apple Watch is in pairing mode.
- Tap Reset when it appears on your watch.
- After your watch resets, you can pair again.
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copied from: If you can't pair an Apple Watch with your iPhone - Apple Support