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.