5 Year Warranty Case Diameter: 43mm Case Thickness: 11.5mm Strap Width: 22mm Automatic - Citizen Miyota Series 90S5 Power Reserve: 40 Hours 10 ATM - 100 meters / 300 feet Glass: Sapphire Crystal (Scratch Resistant) Dial: Genuine Green Italian Marble Case: 316L Stainless Steel Caseback: Sapphire Exhibition Strap: Stainless Steel Bracelet with Marble Inlay Clasp: Folding Clasp Push-Buttons - Steel Packaging: Matte Black Wood Presentation Box