20/18 mm strap with ss Divers Clasp. High quality natural Rubber strap made by the Leading Italian Manufacturer Bonneto Cinturini. Note: Please don’t compare to the cheap made Asian copies. Satin/polished ss secure double push button Divers Clasp ,195 mm long, 4.5 mm thick, adjustable max. 60 mm and fine adjustment by spring bar in the clasp.