Quoting myself here but no ZF V3 stock anywhere. Most likely because of the raids or there is a V4 coming
To answer your earlier question, no the stutter was not fixed in the v3. It *does* appear to be fixed in the Yas Marina RM55, or at least mine does not stutter but does spin like the Seiko it is instead of a hi-beat.
I don't think there's a v4 coming, I think ZF is going to do other watches and coast on the 55 and its variants for a while (maybe release a black ceramic one after the YM), but I'm just guessing. We'll have to see!