This watch strap is perfect for Certina DS Action Powermatic 80 Diver owners who love both style and functionality. Whether you're going about your daily routine or diving underwater, it's a great companion. The strap is made of high - tensile silicone rubber with curved lug ends engineered to fit your watch precisely. The heavy - duty 316L stainless steel buckle ensures a secure fit. It has a stylish textured design with contrast stitching and is easy to maintain as it resists dirt and grime.