These curved-end rubber watch straps are designed to fit the Omega X Swatch MoonSwatch, but they also fit other models and brands such as Omega Speedmaster Professional, Rolex, Zenith, Seamaster, and more. This Black curved rubber strap is frequently seen on the Mission to Mercury, Mission to Moon and Mission to Jupiter, making it one of our bestsellerShop Authentic Black Curved Rubber Watch Strap for Omega X Swatch MoonSwatch Collection | Straps available for Mission to Moon, Mission to Uranus, Mission to Mars, Mission to Sun, Mission to Pluto, Mission to Mercury, Mission to Saturn | For more watchbands, visit Wristbuddys.com - your watch strap shop online.s. It is waterproof and ideal for outdoor use, which is why rubber straps are highly popular among divers and adventurers. It's a perfect summer strap. It also comes with a 304L stainless steel buckle.