Apple Watch Tips
Swipe up on the face and you’ll get the option to delete it. Note that you’re not actually deleting that face from your Watch, you’re simply removing it from the list of quick-access watch faces.- Shawn Blanc
Some pretty cool tricks and tricks collected by Shawn Blanc.
I didn’t know you could delete the default ones. Makes switching between two watch faces much easier. (I use the Solar one from time to time)