Here's one with few markings, other than the usual Bulova case back date of N5. The inside of the case has nothing other than the reference number, 9672. There are no markings to denote case materials or band materials. It is quite heavy, but bears no gold marks either. It looks almost unworn.
In reply to I didn't find anything in the by Andersok
No import code that I can see, the band is indeed integral with the case. As we know, things were getting a bit difficult for watch companies in the mid 70's, stylictically there was no clear direction and the bigger companies, mostly Swiss, were starting to get serious competition from the cheaper quartz brands. I see a lot of strange things start to appear as the 70's go on, like a lack of proper stampings for Stainless, etc.