Lani your pics are tip-top old boy.
imho you cannot get a better mod than a gen crystal.
I completed the above piece by adding: gen dial, hands, datewheel, crown, tube, crystal and bezel insert.
Each mod for me just made this thing so much better, but for me a PO isn't a PO without that blue hue from the gen crystal. I love it.
I am about to build my second mod (an orange version) but the gen crystal I got hold of is from a used gen piece and gives off a more pinky purple hue? Could this just be an older AR process used by omega?
Anyway I cant wait for my next UPO to arrive so I can put together my next mod.