Edit 22/01/2024 — I have added the file for the arms that I used in my make, I can't guarantee they will work for your mechanism but you are welcome to try.  

Monster Energy Desk Clock

Here is a single print clock, with a built-in stand, that prints all in one with no supports , It also has an area for you to stick an led strip if wanted.

the inset area of the clock is 57.5mm x 57.5mm wide and has a depth of 17mm. it has been designed around the generic cheap clock mechanisms you can purchase online, but it's your responsibility to check and purchase one that will fit.

This Monster Clock is one of many clock designs I have, more can be found here .. Clock Collection