Hi Tahoeblue,
in fact 5140 is very different with a much larger dial aperture (and smaller/narrower case band/bezel). Just compare the subdials to outer dial circumference distance.
I'll try to do a picture of both side by side (as they are in the showcase ) later - although apparently same diameter 5140 looks definetely larger - a well known effect of large dial/narrow bezel compared to wider bezel small dial.
