Mineral Reinforced Glass:High hardness mineral glass scratch-resistant watch mirror also have high definition.316L Fine Steel:Stainless steel strap and Secure buckle, there is nothing to hurt your clothes or hands. Foldable safety buckle, easy to wear. Excellent corrosion resistance, high temperature resistance, excellent creep resistance.Functional Analysis:Date calendar with the quick date function, you can set the date on the watch with turning the crown. Three workable sub-dials will provide all functions(Hours, Minutes, Seconds Chronograph) for user.Water Resistant:This wrist watch is very suitable for daily use. 3ATM water resistant, NOT suitable for diving, snorkeling, swimming, water-related work.Suitable Variety of Occasions:Simple design watch with black dial and automatic date. Attending meetings, business trips, parties. It can adapt to different occasions.SpecificationsName: Classic Casual Quartz WatchMovement: Japanese quartz movementWater Resistance: 3ATMDisplay type: 24-Hours AnalogMovement type: Quartz watchSurface: High-intensity anti-wear mirrorClasp Type: Double Push Button Clasp ClosureBand Material: Stainless SteelWatchcase Diameter: 41mm (1.61")Watchcase Thickness: 10mm (0.39")Watchband Width: 20mm (0.78")Band Length (Included the case): 240mm (9.45")Functions: Calendar and date display, Chronograph, Luminous Hands, life waterproof.