I bought a MBW DRSD almost 18 years ago and it was a great piece. Over the years I replaced the usual parts (crystal, insert, crown etc) and gen parts worked just fine. It was a very, very believable and solid piece. We have a member here, Rolexfinder, who put up a sale thread in the last couple days, and he can get a GW or DR 1665 from the last remaining MBW stock. If you're really interested in doing it right, buy one of those. Here are some comparisons between old MBW and gen: