If you’re wondering how to reset iWatch, it’s easy to do. First, press and hold the side button and the digital crown at the same time. Keep holding them until the Apple logo appears on the screen. This process will restart your iWatch. If you want to erase all data, go to the settings on your iWatch, tap “General,” and then choose “Reset.” From there, you can choose “Erase All Content and Settings.” Learning how to reset iWatch helps when your watch is acting up or if you want to start fresh with a clean setup.
https://techforzone.com/how-to-reset-iwatch/