This curved end rubber watch strap is great for those who own a Certina DS Action Powermatic 80 Diver. Whether you're wearing your watch to work, going on a daily jog, or diving underwater, this strap is up for the task. It's made for everyday people who want a reliable and stylish watch accessory. It has curved lug ends that fit perfectly with the Certina watch, and it's crafted from high - tensile silicone rubber. The heavy - duty 316L stainless steel buckle ensures it stays securely on your wrist.