Model: k821l movement: original imported movement mirror: synthetic sapphire strap: imported calf leather / 316L fine steel buckle: double press butterfly buckle weight: 51.3g,Dial diameter: 34mm strap width: 18mm dial thickness: 10mm waterproof depth: 50m.Carefully polished, streamlined beauty, outstanding texture, light and thin fit, setting off women's slender wrist lines.The luminous coating on the time needle and the dial with high reflectivity provide you with a relaxed and comfortable time reading experience anytime and anywhere.