It's 42mm. They have some 42mm chrono versions, but they are kinda sh*tty if you ask me. I saw a gen of this and it is beautiful. I would love a tricked out one, but I am not going to hold my breath or look at any more pictures of them - it just makes me want it more.
The 184 and 242 are some of my favorites. Not as stocky as the 111's and not as clumsy as the big 47mm's. Don't get me wrong, I love those, this one just seems right, but a little on the dressy side.
There was just one for sale for about $6k - a 98, I believe.
RB