I own the V6f and the ZF version. In terms of fit and finish, v6f way better. But none of them is superrep as the 243 or 364 . I like the cleaner and smoother look from 571 over 364. And i like the titanium case which is so much lighter than 243. If i had the funds i would try to go Gen on this watch.
I have both noob 364 and KW 371, they are must have thoroughbreds in you Sub collection, both are great, if you areon the verge for both, then start with the 364 as ale mentioned...