The Resurfacing page says that their current equipment uses one of the six standard Brunswick finishes, with the Awesome Finish having a High Gloss polish.
Yes, it says 400-grit plus HG but I'm inclined to agree with dizzy, it looks a helluva lot shinier than that. I've seen several of the polished Brunswick balls and the finish on the Finish is more like a high-grit plus polish like The One than a low-grit plus polish.
SH