I had the same experience picking up the Gauss model.I hear ya, I went in thinking the same thing. I just thought the 38.5 was a touch small for me and they didn't have any 41.5s in the "old" style. Once I tried on the new one, the date window didn't bother me and that was it. Can't go wrong either way. Enjoy!
From pictures, I thought the lack of date window would make the watch unwearable. From a practicality stand point, it doesn't bother me at all when on the wrist and I actually quite enjoy it that way.