Features: 316L Stainless Steel Case Stainless Steel Bracelet Swiss Automatic Movement Caliber: 11 1/2”’ Scratch-Resistant Sapphire Crystal Silver Dial Analog Display Open Heart Dial Power reserve Up to 80 Hours See Through Case Back Deployment Clasp 30M Water Resistance Approximate Case Diameter: 39.30 mm Approximate Case Thickness: 09.80 mm