Sorry Roety, I think this one is a pressed fake. While I'm not an expert, for me the style is way off. The most obvious errors in my eyes are the owl itself, the large theta, and the crest of Athena's helmet. The reverse (owl) seems to be a match to this replica coin, made by the company Antiquanova Replica.
As Victor said, it's so important to purchase from reputable dealers when you are new. I hope the seller is willing to offer a refund.