My Apple Watch always shows America all of a sudden.

Hi

You are referring to the Astronomy watch face.

Check the following settings:

On your iPhone go to Settings > Privacy > Location Services and check that:

• Location Services is enabled (top setting);
• In the list of applications beneath, check that Apple Watch Faces is set to While Using > While Using the App.

Check that Bluetooth and Wi-Fi are both enabled on your iPhone:

• iPhone: Settings > Bluetooth - on.
• iPhone: Settings > Wi-Fi - on.
• For the best performance from your watch, keep both Bluetooth and Wi-Fi permanently enabled on your iPhone.

Check that your Apple Watch and iPhone are connected:

• When viewing the time on your watch, swipe up on your watch face > swipe left / right to the Settings Glance > check that this states Connected and shows a green phone icon. Disable Airplane Mode if it is enabled.

It may also help to restart both your iPhone and your watch:

• Turn both devices off together, then restart your iPhone first;
• To turn your watch off: press and hold the side button until you see the Power Off slider; drag it to turn off;
• To turn it back on: press and hold the side button until you see the Apple logo.

Restart your Apple Watch...

1. Press and hold the side button until you see the Power Off slider.
2. Drag the slider to turn off your device.
3. After your watch turns off, press and hold the side button again until you see the Apple logo.

Astronomy

In addition to the time and date, this watch face shows you the phase of the Moon, the Earth as currently illuminated, and the positions of the planets.

It may help to turn off Location Services (the main setting at the top), wait for few moments and then re-enable it.

You're welcome! 🙂