I do not agree with the coments on the 5140. The newer case is not as round ish and has a nicer flow and balance. The left dial on the 3940 is light and weak, whereas the 5140 is bolder and yes the day dial is bolder, brighter and far easier to read. All in all great improvements in my mind. But such is all left to personal opinion and therefore, no one is right or wrong. Love your 3940 by the way.
fully agree with watch-er re comparison b/w 3940 and 5140.
BTW, have seen 5140P and 5140R in the metal........the white lettering/numbering is unusual, and not to all tastes, as is the brown dial on the R. Neither really works for me.
5140 is one of the few PP's that I find most desireable in YG.
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).