Each number stands alone in the open. Center hole to rivet. Top resembles the old pocket watch wind-up style. Doesn't turn but easy for you to rivet on your own watch hands---and we carry them, SKU brox06300.....use our eyelet rivets, SKU eyelet-rivet. Brass base plated in a rusty black patina finish. 41 x 38m. Sold by the piece.