The long and short of my collection, in photos. Both of these are proper keepers.
Instead of a review, I decided to have some fun with photos instead.
In terms of the movement... Visually, they both are pretty close. Stowa has gone with a well-decorated version of the 2824-2, and a really nice rotor, so the summary "effect" is no worse than from Nomos' inhouse movement.
(Yes, I put a Nomos velour strap on the Stowa. It feels nicer ^^)
One good thing about both of these is that they are thin. About 10mm for the Stowa, and about 8.8mm on the Nomos.