I have the V7F Mark XX on a bracelet. It uses a Seagull ST1812 which is an ETA 2892 clone. It's super smooth to wind and mine had a delta of around 8s/d in 5 positions which isn't bad at all. Good amplitude and 0.1-0.2 beat error in all positions.
The case is a bit sharp against the skin so I knocked off the edges with 2000 grit sanding sticks and now it feels fantastic. The bracelet is great but the quick release is very very stiff. It's hard to take off but clicks in place nicely when putting them on. I resorted to removing the spring bars when taking off the bracelet instead of fighting the quick release.
The bracelet itself comes with the quick release links and they were a bit sticky to place back but we're nice after a rinse in the ultrasonic. It looks and feels very nice on the wrist and doesn't have the sharp edges of the case. For people with biggers wrists the solid end links might cause a problem with the angle it's set at. Might be pointing too much down.
For me it's a NWBIG for sure. Beautiful sunburst, great bracelet and a solid movement. The Seagull ST1812/2892 is a good step above the normal a2824 clones we usually get.