Screw-down case back, Dimension 43mm, Glass Sapphire with several layers of anti-reflective coating. Material Stainless Steel, Specificities Screw-in crown, Water Resistance 300 meters, Bracelet Material Stainless Steel with Deployment buckle. Dial colour blue, Silver hands, Main Functions Hours, minutes, seconds, and date. Caliber 619/888, Automatic Movement, Power Reserve 42 hours. 2 years warranty.