My iwatch background won’t stay at black. It keeps asking me to set the background even though it shows black as the default in the iPhone watch app.

Hey WayneParsons,

Here's a user guide with all the Apple Watch faces that are available: Apple Watch faces and their features

Where are you seeing the option to set up the Apple Watch face as just black background? There are also ways to customize your Apple Watch face by following the steps from this user guide: Customize the watch face

We hope this helps!

Best regards.