A well-designed Watch Face is a distinctive smartwatch feature.
Use the Tizen Watchface App template when you create a new project:
Or you can create your watchface app with Tizen Template Studio:
Build and run as described in Create Your First Watch Face.
Once you install a new Watch Face application on your target device, you can find the Watch Face application installed at the Watch Face list. To change the watch face, tap and hold the watch screen and then rotate the bezel or swipte the watch screen to the left or right.
Check out other sample Watch Face applications:
SimpleTextWatchface sample application.
WatcFaceSDC2019