Sure. I know priests who wear rings or necklaces, or pins to support certain groups/causes. I’ve never seen a priest with an earring though!
Well, I’m a watch guy myself and I certainly do like nice watches… but I don’t think I’d be willing to buy a Rolex as a priest. If it was given to me as an heirloom, maybe. But either way, it’s screams scandalous for a priest to wear something like a Rolex.