Oniss ON8101-L White Women's Swiss Sapphire Ceramic Diamond Watch Precise Swiss Quartz Movement High Tec Ceramic Case and Band, Push Button Butterfly Open Clasp Sapphire Crystal, Date Display, MOP Dial, Genuine Diamond Markers, Luminous Hands Case Size: 39.5mm Diameter, 10.85mm Thickness Water Resistant - 30M, Screw Down Stainless Steel Caseback