I just got a V2 from V6F as well and I gotta say, it's an amazing rep. I almost bought the Gen (found it on sale on Touch of Modern for $11K US) but i'm so glad i didn't pull the trigger on that. This rep has an amazing quality and sub $500 is a killer deal.
The only real tell as a rep for me is the lume. it looks painted on and is a bit too glossy, whereas the Gen lume doesn't bump up at all and has sort of a matte finish.
Let me know if anyone saw the gen in real life and noticed what i'm talking about here. I have never seen the gen in real life as this is a pretty rare Hublot watch.
If anyone is wearing a rep, i'd be able to pick it out right away due to the glossy finish of the lume.
with that said, I STILL love this watch and would def purchase the rep for $500 over gen for $11K given it wouldn't be my daily beater. great casual summer watch!