this is a model I adapted from a design on Cults3D. It now has Roman numerals which can be a different color simply buy pausing the print at the correct layer and inserting a different filament. This design should fit most clock mechanisms, I bought mine through Amazon. 

I used a tan colored filament, and then I weathered it by rubbing and buffing it with some antiquing gel. I think it could have been easier to get a stained wooden look if I had used wood filament, but I was all out when I started this print. I would love to see photos if you do print it!

FYI, the model does require minimal supports for the main wheel.