After taking off the cover of this one
I poked a hole in the back of cover and inserted clock motor. You will have to either put a nut or something that keeps the motor from falling out ( I used a piece of straw).
Which worked just as good. Also, be careful when putting a hole in this type of cover, mine crack a bit but not really noticeable.
-Added the numbers and some super of your choice that will hold numbers in place.
-Then added the hands (be careful for these hands shown are very delicate)