The buckle looks like a nice original by Overhoff. I don't know about belts, so I can't comment on it with any authority, but it looks like it might be a regular Wehrmacht issue.
Looks alright a decent amount of wear to it, but I am not an expert on SS buckles
I tend to agree with Erno, His ability to recognize traits on buckles is very sound IMHO... Gwar
Both belt and buckle are original, the buckle is a late war Overhoff
Thanks everyone for your comments. Rob.