Seiko Japan 23 Jewels Self Winding Automatic Movement (Caliber 7S36) Stainless Steel Case and Band, Push Button Deployment Clasp with Safety Lock Feature Hardlex Mineral Crystal, Day/Date Display with Spanish Option, Lumbrite Hands and Index, Uni Directional Turning Bezel Case Size: 41mm Diameter, 12mm Thickness Water Resistant - 100M, Transparent Screw Down Caseback