The apple icon flashes on and off. I have tried rebooting it and cannot get it to work.

Hi Clfix55,

Thanks for posting in Apple Support Communities. We noticed that you previously reviewed If your Apple Watch won't charge or it won't turn on which is the best resource for this issue.

If you've tried the steps there and the same issue continues, it would be best to reach out to Apple Support to check on repair options.

All the best.