Yet i'm still tryin to understand why an international bank wire transfer without currency exchange (EUR -> EUR) and within UE (actually from Switzerland to Italy), is taking one week or more to arrive...

Italian banks don't exactly have a stellar reputation, maybe paying the fines is cheaper than upgrading the software?

I dont think it's a software problem (wire transfer between italian accounts are sent in one day thanks to the cited european law), somebody told me they're cheatin on this so they can have liquidity that they can borrow to customers. Having said that, many financial services are cheaper in italy than in Switzerland or UK if you dont include taxes.