The problem is not that the dumb shop 🤦‍♀️ but the staff who doesn’t know how to authentic genuine watches realise the mistake later
Of course small country with high efficient investigative force coupled with limited exits out of country 🤦‍♀️ obviously the police will look at airport 1st followed by ports and causeway

The shop itself would have taken a copy of the Italian passport which would be easily for police to track his movements via immigration system