Case is 27.25mm Square. Lug end to Lug end is 36mm. 10kt RGP Marked M7. Movement is also marked M7. Diamonds at 3,9 and 12. Case is only 5mm thick not including crystal. Edit: Triangle illusion plate at 12 and round illusion plates at 3 and 9. Don't know if this is ladies or mens or unisex.
Folks, Bobbee found a new Diamond Excellency "J" ad posted on page two. Almost everyone voted before the Diamond Excellency "J" ad was posted in thread. Bobbee also found a second Diamond Excellency "J" ad from same or very close year confirming posted ad.
Votes to date:
2 Diamond Excellency "J": Will, Bobbee
2 Generic Diamond Excellency: Admin, Fifth (both voted before new ads)
3 Unknown: Geoff, DarHin, Bourg01 (all three voted before new ads)
Looks similar to this watch here. Recounting the votes to date, we have 4 for Diamond Excellency "J"; two votes for Diamond Excellency w/o variant; two for Unknown.
I think this one is the "J", and I just forgot to update a couple years ago.