Should it go with a (Spanish cover) descriptor or something?
No.
What country did you buy it in? You would search the used market in that country to verify other copies have the same qualities as yours.
I found an Argentina version that has a back number of 3006527-AC and UPC of 711719547624 as well as a "Sony Argentina" import label. At least it seems that the back number may be unique between versions, as it does not match your pictures.
I can't find the one in your pictures but I only searched in Mexico, Argentina, Peru, Colombia and Costa Rica.