Not to be contrarian for the sake of it, but having looked at both closely, I think I prefer the blue dial. I would, of course, be extremely happy to have either one of these masterpieces!
I find the sunburst guilloche pattern to be extremely elegant and no doubt will gleam and present a different look depending on how the light hits the dial.
I like the grained silver dial a lot as well, but because of the silver hands and markers, I find the dial to be a bit muted and almost a tad bare. Clearly it's not, but it's the first impression I get when looking at it.
Of course, thanks again for the beautiful pictures of this amazing watch!
Regards, kkwn98