"I did wonder about the movement on these too - anyone got pics or further details of the movement in the re-edition?"
The Calibre 11 inside this Monaco reedition is an ETA 2892A2 with a DD chrono module. It is the same movement used in the reedition Autavia a few years ago. Pictures of the New Collection Monaco Calibre 12 with a clear caseback, showing this 2892A2, can be found under "Baselworld 2009" in TH's website. As the chrono module is sandwiched between the base movement and the watch's face, both Cal 11 and Cal 12 look the same.
And in connection with pushbuttons, I think that the "feeling" is better when operating the old sytle round, fluted original Cal 11 pushers, but the modern style is much better protected when shocked against a door jamb or snaged in a piece of clothing (don't ask how I know; I've replaced the screw fastening the upper pushbutton at least twice).