How To Choose The Right Men's Bracelet Size
For normal wear (It rests at the top of your hand)...
Measure your wrist around the boney part, then add half an inch (12mm).
If you want a snug fit and the bracelet can be opened and closed, measure around your wrist where you want to wear it and go for that exact size or very slightly bigger.
If the bracelet can't be opened and closed, you have to add half an inch (12mm) to your measurement to be able to slide it over your hand.
Tip. Since most of us guys don't have soft measuring tapes lying around, you can wrap a strip of paper around your wrist and mark it where it meets. Lay it against a ruler and you'll have your measurement.