It took rather a lot of effort to wind it, so I may send it in for service pretty soon. (I budgeted for it; the watch was only $255 shipped)
I think it looks OK on the black lizard strap, but not as good as the eventual brown lizard one. (any other strap ideas?) At any rate, a lot better than the notched brown leather that it came on.
The 3130 in my Rolex is also kind of a tough one to wind. Neither of these are in the same league as the Seamaster Pro I wore this morning. (which uses an ETA 2892, whose keyless works has been breathed upon by Omega to make it into the Omega Cal. 1120...)




seller's pix:


It has not lost or gained much for the past 11 hours or so, since I got it, so that's a good sign.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Where there is shouting, there is no true knowledge."
-Leonardo da Vinci