Be careful with SE's.
I've logged countless hours on my 8X32 SE and I love it. The 10X42 SE might share the same housing, prism, etc. but it's a different binocular. It's longer, less stable with a rather narrow field of view. Compared side by side, the differences between the 8X32 and 10X42 are apparent.
I'm quite certain the 8X32, 10X42 and 12X50 SE's share identical housings, prisms, and eyepieces. Objectives and focal lengths obviously differ, but I believe everything else is a match. I was very tempted to buy the 10X42 SE but I just couldn't get comfortable with the magnification or field of view. Still, the 10X42 and 12X50 SE's are superb optically and I'm sure there are many satisfied users.
Henry can correct me on this but I think the 8X32 SE is the best of the SE line. It appears as if the stubby 32mm objective was attached to the prism housing as an afterthought. I'll bet Nikon designed the prism for the 10X (which came first) and then simply added shorter and longer tubes for the 8X and 12X models. My eyes tell me the winner of this design is the 8X32. After more than 1000 hours of use (it could be close to 2000 by now) I am heavily biased toward the 8X32 SE, in spite of all its faults.
The point is all SE's are not equal. Caveat Emptor!
John