I like mine enough that I ordered a second over the weekend, a Master 1000. IMO these NATO divers are "upgraded" Seiko SKXs due to the automatic movement (which is Seiko) and the sapphire crystal. I also like the larger size as I'm 6'4" and 196#. The original SKX was a little too small for me.
I think they are worth the $ at 40% off but I don't think they're worth retail. I usually wear a Suunto most days so these are more for "going out". Also, I won't panic if they get some scratches/wear on them. Kinda like my Glocks...