The old Llama in .380 was not importable under GCA 68. After a hiatus for redesign, the gun got vent rib, a loaded indicator, "target" stocks, and adjustable sights, thus gaining enough "points" for importation to be resumed in 1972. So I think your pistol dates from that time at the earliest.
Not a bad little gun. No world beater, and a bit soft like almost all Spanish pistols, but perfectly serviceable for anything like reasonable use. Pretty accurate, too. I would say a lot better made that some of the Llamas that have come out recently.