I got the Green BVF Santos just yesterday.
I also saw GEN Green Santos at Watches of Switzerland in London the other day.
I can say that the Gen Green Dial is slightly darker than the BVF.
In direct Sunlight BVF Green Pops when GEN is more subdued.
The date wheel is fine, but not GEN accurate as usual.
The strap is slightly improved in my opinion, Lugs are tighter than a year ago.
Floating R - not present anymore.
Indexes - as per Gen.
Execution overall is A+
But if you want NWBIG accuracy with a green dial, you must invest in a new dial or wait for V2.
I'm pleased with mine tho.
Wrist 19.5cm