series 3 watch faces

Yes.

More watch faces Switch things up with new watch faces for Apple Watch Series 4 and later—Modular Compact, Solar Dial, Gradient, California, Meridian, and Infograph Fullscreen. All Apple Watch models gain the Numerals Duo and Numerals Mono watch faces.

Most of the faces in watchOS 6 are designed for the Series 4 and 5 and their larger displays. 2 faces sounds about right.