Coin diameter 21-23 mm, weight 6,68 grams. Weight is like 2 reales, but a picture on coin seems such large as 4 reales... I viewed spanish coins in „Standard Catalog of World Coins, 1601-1700 (4th Edition)“, but can‘t find same..., maybe this coin is rare?
Quick WAG would be Toledo Mint. Study the castles on the cross side and you might be able to track down assayer. I would search through past auction catalogs and compare Toledo pieces. The denomination is a 2R.
Yes, a homeland Spain type... should be Seville mint by style. This is the late Philip II/early Philip III "OMNIVM" type referring to the legend writing) - 1597 to ca. 1610. Everything of this type for the Seville mint was assayer B (what... you can just see of the MM and assayer mark seems to match up.
PS - it's a nice chunky 2 Reales... very typical for the type.