How unlock my Apple Watch it too many passcode attempts

Click this link and follow the directions --> If you forgot your Apple Watch passcode - Apple Support

I am sorry that you have forgotten your Apple Watches passcode. Please follow these steps in order to regain access to your Apple Watch

Unfortunately you will lose all data that has been stored on the Apple Watch. If you have a backup you can restore that after the process is complete.

1. Put your watch on its charger and keep it there until you complete these steps.
2. Press and hold the side button until you see the power button in the upper-right corner of the display.
3. Press and hold the Digital Crown until you see Erase all content and settings.
4. Tap Reset, then tap Reset again to confirm.
5. Wait for the process to finish, then set up your Apple Watch again. When asked, restore from a backup.