Mens Black Ceramic Couture Chronograph Watch Precision Swiss RSA 8172 Movement Chronograph Watch has 24 Hour Register, 60 Minute Register, 1/10th Second Register and Date Calendar Bezel is Black Ceramic with Accent Screwheads and a Scratch-proof and Reflect-Proof Sapphire Crystal Case is Stainless Steel and Measures 45mm x 52mm, Ceramic Bracelet is 21mm Ceramic Couture Doesn't Scratch and Polish Always Looks New