[Tutorial] What to do if you forget your Apple Watch passcode:
Sometimes you may forget your Apple Watch passcode and start entering incorrect passcodes. If you keep entering incorrect passcode for more than six times in the row, your Apple Watch will lock you out. You’ll then see a message that tells you to try entering your password again in a few minutes.
Check out our tutorial that shows you how to reset your Apple Watch from your paired iPhone or from the Apple Watch itself.
How to erase your Apple Watch from your iPhone:
Step 1: Open the Apple Watch app on your iPhone
Step 2: Tap the My Watch tab
Step 3: Tap General
Step 4: Tap Reset
Step 5: Tap Erase All Content and Settings and confirm by tapping again.
How to erase your Apple Watch without your iPhone:
Step 1: Press and hold the side button on your Apple Watch until you see the power down menu
Step 2: Force touch the Power Off button
Step 3: Tap Erase all content and settings.