Of course, I'm not a man but....my opinion....
I don't like much jewelry on a man other than a watch and one ring on the right hand (left of course, reserved for the wedding ring). A simple gold or silver ring with maybe some diamonds...but very simple.
I equate a lot of jewelry on a man with the stereotypical used car salesmen with a hairy chest showing thru his unbuttoned shirt. Apologies to any used car salesman on the forum.