Features: 316L Stainless Steel Case Leather Strap Automatic Movement Caliber: POWERMATIC 80.111 23 Jewels Sapphire Crystal With Antireflective Coating Black Dial Analog Display Power Reserve Up To 80 Hours Luminous Hands And Markers Date Display See Through Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 40mm Approximate Case Thickness: 10.9mm Approximate Lug Width : 12mm