I am attempting to take pictures of antique pocket watches, when I use my flash, even with a diffuser or farther away, I get glare from the curved elements within the watch. Are there any sites with tips and tricks to try to avoid this?
For macro of reflecting things you need a as big as possible lightsource.
If the stuff is really reflective, put another piece of paper on top and leave just a small opening to take the photo through:
(My own pictures, taken from my own blog entry about macro tents)
[Update] Strobist just posted a nice explanation for a small macro tent, too.
Have you tried a polarising filter? They reduce glare and reflections generally, so it might well help in your case.