I pretty much only wear my TOG nail ring and sometimes a Zissou double-wrap leather bracelet, but I wouldn't mind branching out a little.
I have a Timex weekender with one of those NATO straps that looks like a selvage line on a pair of jeans, but it's kind of loud (I can't keep it in the same room when I'm sleeping), and it usually works better when I'm dressed a little more buttoned-down or biz-caz than I do on a day-to-day basis.
I also have a silver Tiffany watch that I got as some sort of prize for beating my sales goal one year (this was a few jobs and probably six years ago). I like that it's plain and low-profile, but I usually only wear it if I'm wearing a suit.
I used to wear leather cuffs all the time, some of which I made myself and some of which I bought at craft fairs or whatever, but that was back when I only wore gauche pre-distressed jeans with embroidered back pockets and skin-tight concert t-shirts.
The ladyfriend might make me something - we talked about a double-wrap fabric cord bracelet with oxidized silver wire wrapping and closure - so we'll see how that works out.