kinda think it maybe its a 500 won korean or japanese --hard to tell for sure photos a bit fuzzy-- honestly its been awhile since I was over in those parts but it looks coins that I recall seeing in those parts to me.
Crackbadger here, the coin is Japanese. 500 yen, worth about 4.70 cents I believe. I have several of them, urs looks to be an older coin though, not crazy old, I cant make out the date on your coin without a clearer picture.