Thanks again for the kind words, all!
I've had it for about a week now, so a few impressions. Like most chronographs, it's pretty thick, and stands a bit high on the wrist, but not too much. It came from the owner on a very nice aftermarket Morellato strap; the original bracelet came with it, unsized, still in the plastic. It came with all the papers, in a very nice box (for Orient), including the hangtags.
The dial is superb, a thick black lacquer that surrounds the many dials. There is some lume on the hands, but it fades very quickly. All the totalizer hands and chrono seconds hand are in high polished steel, and are difficult to see in some dim lighting. The date window is very finely done, sunken in the hours totalizer, with a negative wheel, with very funky day numbers. The same font is used in the printed tachymeter bezel, which is a nice touch. The crystal is sapphire, with some AR coating on the inside, but it isn't as good as the new stuff that Orient Stars use today.
The movement is a Seiko 6S37, (Orient named it the 32A00), forty jewels, column wheel operation, 28,800 VPH. The chrono buttons work velvety smooth, almost like a quartz; none of that shit about having to lean hard on the start/stop button, like on a 7750. The movement appears to be running at about +12 seconds a day, which isn't bad for a nearly ten year old watch that spent the first four years sitting on a shelf. The power reserve indicator takes a while to climb to full, unlike most Orients which, left off the wrist overnight will climb back to full wind in an hour or two in the morning.
Case finishing is very good, about what you'd find with an Orient Star, but not spectacular or worthy of awe, like a GS.
My little brain can't even comprehend how deep that is.
--beefsupreme, commenting on his super rare Deep Blue wartche