Features: Stainless Steel Case Stainless Steel Bracelet Automatic Movement Caliber: NH35 Power Reserve Up To 40 Hours Sapphire Crystal Helium Valve Black Dial With Logo "RATIO" Analog Display Luminous Hands And Markers Date Display Screw Down Crown Engraved Caseback (With Image Of A Free Diver) Deployment Clasp 1000M Water Resistance Approximate Case Diameter: 45mm Approximate Case Thickness: 15mm nbsp;