I have an old Nikon 8X35 with a gold ring around the objective barrels. The only markings are Nikon 8X35, 8.2 degrees and wide field. I also have a very similar Nikon 7X35 from the same era. It's markings are: 7X35, 9.3 degrees and wide field. Construction is identical between them.
The 7X35 is an excellent binocular, better than most mid level, under say $400 even today. The gold ring is even better, in fact a lot better than my current Aculons.
Now I have looked it up a couple of times and have been told that the only difference rather than power is the gold ring is multi coated. It just seems they are enough better than simply the extra coatings. Maybe they just took a little more care in the construction.
Anyone know anything more?