UsA Chalk - USA126 is a vintage-style, highly customizable, and battery-friendly Wear OS watch face. It offers a variety of customization options, including the ability to set your own background style and color, as well as choose from a variety of watch-related information.

This app is a fully Wear OS compatible app, and you can choose to set it to always-on display mode. It is designed to work with all Wear OS watches with API Level 28+. 

If it does not install automatically on the watch so you will need to visit the store again and try to turn on the WiFi connection on your watch. Make sure that it's connected. Go to Play Store and tap  “More on Devices”, and make sure to use the same account to set up the watch. After that, tap the “Install” button, and it will install the watch face immediately.