You need Blender 3.00 Geometry nodes to use this.
I USED ONLY MATH. NO HAND MADE MESHING. Easy to control and it is modifiable. You can do many variations of clock, only with tweaking.I try it to do lowpoly, but verticle count depends on you setting of nodes.Exported files are with apply moddifiers.If you have an interest, please contact me. I can explaine it, or help you.
Thanks for your support.