Pretty cool indeed! Only too big for me, unfortunately..
While 44mm is larger than I prefer, I noticed the lug to lug is only 47mm, which should make these more wearable in practice. Having said that, the strap does look to be on the longer side. Which is another concern, aside from the price.
(Pic Credit: @Jeff Stein)
^And Monochrome hints at a Senna Edition!
These look cool and I'm looking forward to trying them on. But even in titanium, nearly $5k US for a 7750 chrono is just silly. These'll be sub-$2k in a couple months, and might be a fun pickup then.
It seems to me that this will be a "base" model, that will be excellent for limited and special editions . . . lots of good ways to incorporate colors, etc. I thought it interesting that on the Red Bull SE there was no reference to Red Bull on the dial, but only "Oracle Red Bull" on the case-back. Easy to imagine them doing a Senna edition . . . just add some green and yellow, and maybe some red!!