thanks Nico for drawing attention to this wonderful watch! It doesn't get the attention it deserves I think, especially the Porthole.
What a crazy idea - to design a watch that doesn't need a crown because of a very innovative mechanism that stops the watch when not worn anymore (i.e. it jumpstarts back and has reserve when worn again)...but then, ironically, you need the crown to re-set the time.
What I love is - yes, the profile and great shape of the case, but even more the perfect symmetry of the dial.
Here one of mine...a bit, how would a seller call it, 'tropical'. I just say 'aged', but nicely (and certainly not in the tropics).