It's a really good replica.
Differences are on he tiny details like the overall cleaning of the dial/ hands, polishing, sealing and water resistance...
Usually the sapphire is much better on the gen, but not in this case (the VSF has an amazing double coated AR sapphire).
The VSF lume is also amazing.
The downside is the bracelet (you won't get an amazing bracelet with a replica, like you get with a gen).
Another obvious point is the movement.
You won't be getting a COSC certified chronometer from a Chinese replica.
Warranty will also be close to zero.
If you want the watch to be "perfect", you will have to pay for it.
I dont think the gen is worth 5000+ $ tho.
You pay the brand.
The VSF has a much more reasonable price (358$) and it looks genlike.
You want to go diving, you want a reliable and precise movement, you want customer service and warranty - go gen.
You want a good looking watch at less than 1/10th the price - go VSF.
Here's mine
Is this a rep or gen?
Cheers