My sentiments are probably with CdM in preferring the 3940 over the 5140, both from the aesthetic perspective and the philosophical. On the first, my take is that the text/numerals on the 5140 are too cramped, and the non-uniform size of the numbers on the date indicator are a deal breaker for me. (Interestingly, the uneven size of the numerals on the FPJ CS are not a deal breaker; probably since they don't highlight a cramped dial.) On the second, I think the case, while only millimetres larger, is now a little too large for the movement (or, at least, compares somewhat poorly).