Hello Lazygoblin...I have what I believe a original Swiss made watch for the Heer,it is made by Mentor and says on the face "17 Jewels water proof Swiss Made". on the back it has "D 3647 H" which is the Heer Property mark..(my guess) The only thing i'm not sure if its original, is the band...it is green cloth with a SS buckle...if it's not original someone sure went through alot of trouble making it...I'll try to take a photo of it if you like. I checked the list you linked to above,it does not list Mentor?

Regards
Sepp