I found a HD1688 radio clock in my electronics drawer and built a clock from it.

Printing

The parts can be printed in different colors and without supports. So you can design the case, the front, the dial and also the hands freely.

I printed them on an Ender 3 Neo. You can find the print files in the files. For the clock hands I would choose a very fine layer setting (at least 0.2). But everything can be printed with a 0.4 nozzle without any problems. 

For the second hand, I would recommend a metal second hand. The printed one can break off very easily and it is quite a fiddly job to get it out of the filigree clockwork again. 

Mounting

The assembly is relatively simple and may require a wrench to fix the clock work.
You can find a HD1688 clockwork at Amazon or at Conrad Elelectronic.  As a clockwork any clockwork with a hand wavelength of 17 mm is suitable. 
You should get a battery if you want the clock to work. 

I have attached an exploded view of how the clock is assembled.