You guys think $600 is bad? Go get a Patek serviced
http://www.patek.com/contents/default/en/costs.html
oh, not even close to bad at all, kind of cool really
That really is a nice PAM, if I were ever to do a pam chrono, I think that would be the one. I don't know what it is about the 1950 case that's different from the Luminor, but I like it.
I tried on a 351 and fell in love.