Features: Stainless Steel Case Silicone Strap Automatic Movement Caliber: 4R36 24 Jewels Hardlex Crystal Black Dial Analog Display Power Reserve Upto 41 Hours Luminous Hands And Markers Date Display Uni Directional Rotating Bezel Screw Down Crown Screwed Case Back Buckle Clasp 200m Water Resistance Approximate Case Diameter: 42.4mm Approximate Case Thickness: 13.4mm Approximate Lug Width: 20mm