Case Diameter: 41mm Case Thickness: 13.5mm Strap Width: 22mm Movement: Automatic - Citizen Miyota Series 9120 Water Resistance: 10 ATM - 100 meters / 300 feet Power Reserve: 40 Hours Glass: Double Domed Sapphire Crystal (Scratch Resistant) Lume: Swiss Super-LumiNova® Case: 316L Stainless Steel Caseback: Sapphire Exhibition Strap: Steel H-Shaped Bracelet (Alternating Brushed/Polished) Clasp: Folding Clasp Push-Buttons - Steel