I do like the UT cases, to a degree, but I feel that the UT cases have taken on too much of a feminine quality...thin bezel, relatively thin lugs, and a proportional but small crown...the 39mm size is perfect, though
there is a fine line between elegant and a bit too feminine and I think the UT cases may have crossed too far into feminine territory (but that's of course just my opinion since many JLC enthusiasts quite apparently love the UT cases)
I felt the mid-2000s 40mm Master cases were too chunky with their flat bezels and proportions
frankly, I think the current master chrono and master memovox cases are terrific and the perfect proportions for me...curved edges and some thickness and heft without going overboard into chunkiness
Cheers,
John