I may be one of the rare folks who has had the chance to compare his 063 side-by-side with the gen. Mine had no AR, and it was SPOT on with the gen 063. Really, following all the mods I had done, the only visible difference was the slightly longer hands on the rep. Now, not to get too far afield, but the length of the hands is due to the location of the printing on the dial NOT the length of the hands. How do I know? My 63 has gen hands.
But, to the AR, if you go without, no one will be the wiser. And it'll cost you less money!