I know that George has offered me solid 18K MBW's when I asked about one. (Not for me...my buddy wanted a solid gold Rolex.) We chose not to get it...I believe the price was $2400 for a solid 18K 1680. Please don't quote me on that...I'm trying to remember an e-mail from a year ago.
I know that there are solid 18K Day Date reps available on TRC, from a certain member. They have gen Day Date movements, and they can be iced out, as well. Those are pricey, as well. However...no where near the price of a new gen. Those were in the UK, I believe.
The best way...step in shit, and find a gen bracelet cheaply.
sv