Compared to the gen, 3KF's crown seems a bit over done. Gen's crown size is in the middle of 3K's and PPF's.
From my perspective, with the PPF, you can thin the crown until it is gen's dimension but if you get the 3K, extending the crown will not be possible.
Also I have learnt that even the gen have different variations of the dial color with earlier versions being less green. So PPF may not be that off depending on which version of the gen you compare with.