I am not a watch maker by any sense, just do minor repairs but I thought you guys might appreciate this.
I ran into a deal on a batch of watches some time back and after sorting through I came across this Michael Z Berger movement, didn't think much about it since it is only a 1 jewel so it sat for weeks while I cleaned and repaired what I could out of the lot.
After getting about 10 1970's Timex dynabeat watches up and running I had 3 that were beyond repair so I stripped them for parts.
While doing that I remembered the MZB and took another look at it, well it just happened to front load into one of the dynabeat cases almost perfectly and the stem lined up just as well, so it became my project.
With just a little fitting it all came together nicely as the pics show.
I had to recess the crown to get all the functions so eventually I will refinish the case where the brass is showing for now it is working well and after a week of wearing it is about 14 sec fast per day so some adjusting is necessary. I left the dial, hands (sans second, came from the dyna) original so it shows some age.
Anyway the summary of the ZbergerTX:
A Michael Z Berger 1 jewel movement with original Geneva Deluxe dial, hands and crown front loaded into a Timex Dynabeat case.