It is interesting that earlier everyone avoided this model, although in fact it is PAM634 in marina format, and regular, not SE for paneristi.
We still have a roller on the lever, a 12-point caseback and screw rods, which is not correct for this generation of bettarini (I will not mention the design of the case, typical of this period), but it must be admitted that this type of dial with sausage on the surface of the disk is obtained from HWF much better than a sandwich and classic sausage.
And yes, again we have the wrong CB marking: in the late 7155 case, they were no longer in the U series. Only 7040, because these are the first editions with an integrated bezel.