Hi pbgumbo,
It sounds like you're trying to turn off the feature where you can unlock your iPhone with your Apple Watch. Is that correct? If so, we recommend that you try the steps here: Unlock your iPhone with Apple Watch
To perform the recommended troubleshooting steps via the link above, complete the steps in the section below.
To allow Apple Watch to unlock your iPhone for Siri requests or when an obstruction prevents Face ID from recognizing your face, do the following:
1. On iPhone, go to Settings > Face ID & Passcode, then enter your passcode.
2. Scroll down to Unlock With Apple Watch, then turn on the setting for your watch.
3. If you have more than one watch, turn on the setting for each one.
4. To unlock your iPhone, make sure you’re wearing your Apple Watch, wake your iPhone, then glance at its screen.
5. Apple Watch taps your wrist to let you know that your iPhone has been unlocked.

Note: To unlock your iPhone, your Apple Watch must have a passcode, be unlocked and on your wrist, and be close to your iPhone.
Please let us know the outcome after giving the above steps a try.
Thanks for using the Apple Support Communities.
Cheers!