I have seen and tried 5821/1A green dial in metal.
To me, the name "Cubitus" has already explained the new collection line, which is a cube shaped Nautilus.
I do like square or rectangular watch, especially a thin one.
The size of Cubitus is indeed a bit large, but it still fits my 17cm diameter wrist.
However, when turning the watch to its back, the large square case should match a similar sized rectangular caliber instead of the 330, which looks a bit small.
Among three references launched, I like 5821/1A the most. The reason being my personal preference to white metal and green dial. The 5822P's big date appearance is also appealing, but adding perpetual calendar or at least annual calendar instead of a calendar watch with instantaneous date/ day/ moonphase change would make it more interesting.
Just my two cents and I am looking forward to seeing the first Cubitus owner in our community!
Cheers, Henry