Wake your Apple Watch by raising your wrist or tapping the display
Enter your passcode on the watch
If your watch is paired with iPhone, unlock the iPhone while wearing the watch to unlock it automatically
If you forgot the passcode, erase the Apple Watch and set it up again
On the watch, go to Settings > Passcode > Turn Passcode Off if you want to remove the passcode
On the paired iPhone, open the Watch app, tap Passcode, then turn off Wrist Detection or change passcode settings as needed
If Activation Lock is enabled, sign in with the Apple ID used to set up the watch
If the watch is disabled after too many wrong attempts, wait for the timer to end or erase the watch and restore it from a backup