A Variation of my earlier clock https://www.printables.com/model/1127210-hummingbird-fuchsia-clock
See also: https://www.printables.com/model/1406226-sunflower-clock
You can use the components from here:
https://us.store.bambulab.com/products/clock-components-kit-011
The back mounts with M2.5 x 6mm long screws (same as my pen models)
https://www.mcmaster.com/92010A016/
This model was designed for multi-material printers. No support should be needed.
The author marked this model as their own original creation.