Summary

My wife wanted to fill a big portion of white wall we have above the TV, however we didn't want to drill holes or anything to support shelves securely, for example. We have paintings on other walls so this was out of question as well.
She suggested about a clock and then I suggested to print it, and print it big!
I started looking for inspirations online and settled down with the idea of basically scaling up a nice looking wrist watch face.

Outer diameter is 80cm.

Each hour marker was double-sided taped on the wall, as well as the hanger for the center piece.
It is only needed a clock motor, that you can buy anywhere, and probably adjust the size of the holes on the hour and minute hands for a snug fit on the real life clock motor.

Source file attached!

Rafts:

No

Supports:

No

Resolution:

0.2mm

Infill:

5%

Filament:

Fillamentum PLA Extrafill Vertigo Galaxy

Notes:

the "base" obviously has to be flipped 180 degrees so the flat part is in contact with the bed.

How I Designed This

Easy peasy lemon squeezy, I got an image from a watch face and used as canvas on Fusion 360 to sketch over.
The minute hand length was limited by my print bed size, so I scaled down both hands to have a good proportion.