FGD,
I'm familiar with the fact that there is a difference in color between the hands and the dial in PreA watches as well as other Vendome models with Tritium treated luminous compound. However, the Non Matching term as coined by D.Grandry (along with others like PreV and PreA) only applies to the "unlucky" PreV batch of 90 watches where the reactive varnish has caused accelerated aging of the luminous compound, and as a byproduct a beautiful amber color of the dial indexes. There is a discussion on Paneristi where Mr.Grandry has laid down the law so to speak with respect to this phenomena. I can link it for those interested. There have been discussions regarding vendome watches exhibiting a similar effect but nobody has come up with a fitting term, "differently patinaed" and others have been suggested.