Sorry... was looking for my 10x attachment, couldn't find it. But with the 5x, the gen window (E series 88)
has what I would call ever so slightly rounded edges rather than beveled. To the naked eye it looks like a
simple cut out w/o a sharp edge but no obvious beveling or rounding. I've only seen reps via pics but so far
the difference doesn't appear to be anywhere near significant. The quality, or lack of, of the cyclops is to
me a much bigger issue.
My fear would be that having a rep cyclops/crystal paired with a gen dial could possibly nullify any hoped for
improvement in the area of the date window.