IWC is Swiss, but in the German part of Switzerland, whereas most watchmakers are in the French portion. That has always significantly impacted their watchmaking ethos, and also made them the natural choice when Lange needed expertise to re-launch itself. So, yes, I think it is fair to say that IWC is more Germanic in design than its other Swiss competitors. How does anglage on non-moving plates decrease friction? All the movement of other parts will be lateral to the plates' surface. Perlage and Geneva stripes, on the other hand, are very functional for that reason.