2019 new released CB10 has centerpiece protrudes slightly detail. The next changes of CB10 compared with CB05 are the two parallel lines that run along the entire bracelet are now filled. This NBR rubber watch band with a curved end lug perfectly fit Seiko SKX007, SKX009 and SKX011 models, etc. NBR rubber has superior strength and more resistant than natural rubber to oils and acids. Material has met the RoHS requirements and rarely causes severe allergic reaction. Accompany with well-built stainless steel buckle. This item also includes one pair of custom made 1.78mm spring bars for easy but secure installation. NBR rubber watch band is a good choice of Seiko replacement watch band for your SKX007, SKX009 and SKX011.