err that is a "sausage dial", not sandiwch dial. pams come in different dial types, more often than not sandwich or sausage, where the lume is filled into cavities instead of 2 layers in the sandwich dials. that partciular watch is the pam380, which has a sausage dial just like the gen. and judging from the spacing of the "PANERAI", this seems to be a gen? cos on the rep, there is an obvious spacing between the "R" and "I". and as for the crown tube, i understand the length varies among gens too. any experts care to chime in on this?