eric.vonschonberg
403
Another perspective ...
First of all, I only like to refer to DNA of biological entities that reproduce. Until RM watches are able to reproduce, their DNA is questionable at best.
A titanium watch has the advantage that it is lighter and potentially more comfortable to wear. On the other hand, some people prefer more heft.
But from a collectibility standpoint, you might want to go for the WG, because there are simply fewer made. Even rarer than WG is platinum. I hear there were only 3 platinum RM004s made. Some day when collectors are scrambling to get one of these 3 platinum RM004s when one goes up for auction, nobody will be talking about titanium and DNA.
Eric