I'm excited about the changes to the 300 project. I love the idea of a sapphire bezel, especially if it is a flat profile like the ProPlof as I expect it would be. The high-domed sapphire crystal is an improvement in my mind also. If those two get combined into a case that has the lugs and case shape of the original Royal Navy Seamaster 300 and a big triangle, it would be just about the perfect retro-tool watch in my book. The new additions make the price increase well worth it. I would, of course, get mine made in a destro formation as is my wont. .
One thing, however, which I find annoying on my current big triangle watch, a "Great White" Seamaster GMT, is that the thin minute markers don't exist all along the edges, but are obscured by the big triangle at the top. This makes stopping the second hand "dead center" at the top a bit of a hit more miss proposition. I'd love it if there were all 60 tick marks (or 60 tiny dots) all along the edge of the dial.\
Oh, and I put my deposit down a while back.