Authentic/ Original Luminox Watch Band Navy Seal 3000 3100 3200 3400 3600 8400 8800 come with a Stainless Steel Buckle Luminox 22mm 3000 3100 3200 3400 3600 8400 8800 Navy Seal Evo Colormark Will fit many of the Luminox Navy Seal Series 1 and Series 2 watches. Including models: 3001, 3003, 3005, 3007, 3013, 3015, 3101, 3103, 3105, 3201, 3000 series, 3100 series, 3200 series, 3400 series, 3600 series, 3900, ETC, Will fit all 22mm Lug Width Watches! Why pay a little more for Authentic LUMINOX rubber bands? Silicone versus Rubber TPU These two materials are very similar and are often confused frequently, but where the difference lies during the manufacturing process. Silicone is a totally synthetic element and rubber is the result of a combination of synthetic and natural components. The rubber applied to the Watch Straps (Wristband) is usually more durable, it is resistant to sweat and salt water. It is not an elastic material so its perception is solid and supports friction better. Rubber straps are an innovative material of the latest generation that is becoming more and more important in the market of "sport" men's watches. The advantage of the silicone is that it is more economical, is softer to the touch and has elasticity unlike rubber. Silicone wristband can be cracked quite easily and with their synthetic component they stick more easily to all kinds of particles and materials, so it is often necessary to clean them to remove those adhesives.