Tag Heuer announced their fiftieth anniversary plans for the Monaco in Monaco last night. They'll be releasing a model for each decade of its life every three or four weeks. There'll be 169 of each released, making a total of 845 pieces.
The Seventies one was released yesterday, and it's already sold out. The differences to the standard model are that it's got a funky green dial and a solid caseback. The price is $6550, against $5900 for the regular model.

I think that Tag Heuer have missed an opportunity by not upgrading the movement to their Calibre 02, especially if they used their new carbon mainspring...
More at
Calibre 11,
Hodinkee, and
Monochrome.
@Filthy the 1999 to 2009 model is going to have a black dial. If you want a Monaco to match your wardrobe, it might be worth putting in a preorder for one of those.