Amazfit Watch faces

I do not know if, and possibly how, you can somehow automatically generate an animated GIF file from a watch face design I made. I have all the PNG files, the "json" file, the BIN file, but I only have the watch face as a 306x306 static PNG file and 454x454.
I would like to have a GIF, but I don't really want to "sculpt" such a character.
Does anybody have an idea?

I already know that it cannot be done yet. Advice is appreciated.