This one may be next on my list. I rarely have occasion to wear a strictly dressy watch, so I hate to drop 4 figures on one. This, with a plain black calf strap and a dark brown croc strap, may be the answer.
GlashÃ¼tte is one of my favorites right now. I think they represent a very nice "bang for buck" ratio. The finish is usually excellent and i think it's more well proportioned than the D.D. But my advice would be to visit a reseller and try on the watch in person to see which one signs loudest to you. Either way I think you'd be happy. But they are quite different.
I have seen and know the glashutte senator and s.sixties quite well. The only way for me to se a Dornblut would be in Kalbe, and im not gooing there before one is ready im thinkin the sterling silver dial and applied numerals. Ilke the "under the radar" factor ...
+1 on GO. +1 on the Sixties, too. The Senator (and the Dornbleuth) has that flat crystal and sharp corner/edging around the case a lot of German watches has. Nothing wrong with it, but imho it makes these more casual than dress watches. The Sixties has a rounded crystal that if you look at it IRL is a real beauty.