It's a small detail that often gets overlooked, but I feel is quite important to the look of the dial. If a date window is too small, or isn't beveled to be flush with the date wheel, I think it cheapens the look of a watch. A nice big date window that's beveled to be flush with the date window is always a plus for me. I also like a big thick metal border, rather than a painted line around the window. But I've noticed on a few watches (Rolex Sea Dwellers - at least on the 1220m, and certain versions of the IWC 3536) they go a step further, and make the beveled edge have a glossy, liquid-like appearance that to me looks the best. How do the rest of you feel about date windows?