I was fortunate to spend a couple of days in Geneva last April at SIHH when the PAM309 and PAM322 were first displayed. From my perspective they were the hit of the show. I personally preferred the PAM322 due to the brown dial and the smaller number produced, i.e. 100 of the PAM309 and only 50 of the PAM322. I do concur that it is a close call, and probably the reason the retail price established by Panerai is the same for each model. I don't think either would be a mistake but I am very happy with the PAM322.