Professional Dive Watch Band by ZULUDIVER for Seiko Z20, Black, 20mm Classic style PU rubber professional diver's watch strap by ZULUDIVER fantastic quality SIZE (Watch End): 20mm | LENGTHS: 140mm / 85mm | THICKNESS: 3mm | SPRING BARS for fitting Made from flexible, tough, durable polyurethane rubber, with two stainless steel keepers Professionally made and molded, finished to a very high standard, quality assured A solid stainless steel buckle which has a sandblasted finish and stamped with ZD approval