Unfortunately, the analog watch face does not allow many options for using a stock launcher.
Here is an example
https://drive.google.com/open?id=1bGBqEYbZThkz2G3j9sLaVVFjqOxnihuQ
The digital watch face offers almost unlimited possibilities.
Here is a real chameleon:
https://drive.google.com/open?id=1UVYPBpdgOBQXT69lR_xHQeIO_qVgUzeN
both versions work with stock launcher.