Restarting my Apple Watch when forced restart doesn’t work
After swimming laps my Apple Watch won’t restart. I’ve tried a forced restart and it’s not working. The Apple logo is now turning on and off.
Question marked as
Which Apple Watch are you using? If this happened after swimming, this looks like water damage.
About Apple Watch water resistance - Apple Support
You should visit an Authorised Apple Service Provider or Apple Store next to your place and let them have a look at it, or contact the official Apple Support.