Portofino Chronograph IW391007 Accuracy

Hi, I just got a new Protofino Chronograph IW391007 and loving it. However, just to check, it seems like after 1-2 days, my timepiece is 1 minute faster. Not sure if it's normal or I would have been so lucky to get a not so accurate piece. Appreciate any help or info. Thanks.

That is way to much. An IWC is regulated from 0 to +7 seconds / day by the factory. There is no tolerance outside that initial range. You should have it checked by a watchmaker.