I took these pics a while ago. I was trying to put a V6 into a ZF case, did not work..
I will say the one on the left in the first pic is the ZF
ZF had much better overall material quality and the movement was also decorated nicely. Xtal also has a hue closer to the gen.
but ZF assembly was not good - something was always crooked or misplaced.. I bought I think like 4 of these..
V6 is also not perfect but I gave up at one point to look for a flawless one..
The ZF
And the final V6 with the crooked 11 I ended up keeping