on ebay once. from what i understand it would a an autavia made by heuer for bulova...so a poorman's autavia.

as for the caseback....i have never owned one before, so i can't comment on that part.

i would advise posting a pic here of this particular bulova on this forum as there has been lots of put togethers floating around out there. someone here should be able to say yeah or nay as to whether it is original as is or not. hope that helps?

j.h.