Oniss #ON8891-L Women's Stainless Steel Trim Crystal Accented White Ceramic Watch Precise Swiss Quartz Movement High Tec Ceramic Case and Band, Butterfly Spring Clasp Sapphire Crystal, Date Display, MOP Dial, Baguette Crystal Bezel, Luminous Hands Case Size: 39mm Diameter, 12mm Thickness Water Resistant - 30M, Screw Fastened Case Back and Screw Down Crown