I've only owned one tourbillon and that's the famous Hublot one, which tourbillon watch is the closest to the genuine? This is like asking who has the best sub but to my understanding it's the VC Malte, is that correct?
The VC Malte is definitely one of the closest to gen. However it's very hard to get one with the seconds hand properly placed on the cross as shown on this gen:
TDs have been known to give up after a couple of returns. It's probably an easy fix for anyone with the know how or brave enough to work on a tourbillon. I'm neither.