I make these sterling riveted bangles...I've given them a slightly hammered finish before their polishing. 2 hand-forged chunky rivets hold the bangle into its shape. I generally use one (or 2) bronze rivets; sometimes the second rivet is sterling. They measure approximately 1/8" in width and are a weight that is heavy enough to feel substantial, but not too cumbersome. They are lovely worn in a group of bangles or as I do, added in with other pieces.
...oh yes, I also make them in bronze (generally with sterling rivets).
You are not measuring your wrist size, but the breadth of your hand, for fit.
XS 7", S 7.25", M 7.5", L 7.75"+, XL 8.5"+
***NOTE I no longer keep these made up, available. They will be made to order.