As I mentioned in my SKX007 diver post, this style of Seiko diver comes in a number of model numbers with only minor cosmetic differences. Today's watch, the Seiko SKX173, has a different dial than the SKX007 but is otherwise identical. So, everything that I said about the 007 holds true for this one. Also, if you compare this watch to my bead-blasted 007 you can see how the highly polished case and bezel give the watch a different look.
I bought my SKX173 secondhand (from Australia, actually, when the American dollar was worth a little more down there) and wore it a number of times on the included Seiko rubber strap. It actually was more like plastic when I got it, probably due to its age, and eventually it just broke. I'm wearing it now on a grey nylon NATO strap which coordinates nicely with the silver hour markers on the dial and is very comfortable. I think I'll have to pick some oddball watches for the rest of the week. Most of the watches I've posted so far have been ones I wear pretty frequently, and I have a bunch I never wear, so maybe I should dig into those before I run out of my favorites.