Why?
Because I really love the design and aesthetics of the PAM615. I think it's one of Panerai's most sexiest chronographs ever made.
I love the Carbotech, but my hopes are for Panerai to make a 44mm version of the Carbotech, whether it's a regular luminor or maybe even a chrono. I love the look of the Carbotech but I'm going to hold back for a future smaller sized model because I know the thick 47mm submersible case will get tiring on the wrist for me.
Cheers,
Anthony