Indeed...it is me! Very cool to see you here!Genco, this is too funny - I just Googled Gruen 510 crystal looking for a replacement crystal for my 510 and found this post. It's the same watch! Did you sell this on Ebay around May- June 2017? It has the bent left horn (which I straightened) and the same exact cracks/scratches in it!
I bought it to have an extra case and parts for a gold cased "Bond" 510 I was working on. I am wearing it now with the gold watch's movement in it while I have the gold watch's face re done. If it was you thanks!