For me it's an easy choice... the Glashütte Original Senator! I have a surplus of sporty and rugegd watches and almost no dress watches. I think the GO Senator is one of the finest dress watches avaialble. The leather strap and how it fits on the case is so beautiful... the clean dial is spectacular and the movement... well... YUMMIE big time!
I do love a no date submariner, but than i'd prefer a vintage one with matte dial.