Also, try [glow=red,2,300]Luka-San[/glow]. He's a member here, do a search on the forum members search engine and shoot him an email. He's the tuna master when it comes to parts for those awesome watches.
Pete Khun at [email protected] I think??? he may have a set of HR and MIn hands??/ Few weeks ago
he did have the Dial for a 6215-7000 and Hands They sold, but give him a try, he may?? have something left, the hands are the Same.
My Grail is a 6159-70001 and having one to restore is a Gift in it's self, Good Luck