Automatic Movement: Mechanically Powered And Wound By The Motion Of The Wearer's Arm Or Manual Winding Black Leather Strap Buckle Clasp Stainless Steel Bezel And Case Sapphire-Coated Mineral Crystal Push-Pull Crown Silver-Tone Dial With Luminous Silver-Tone Hands Case: 47Mm In Diameter X 13Mm Thick Bracelet/Strap: 22Mm Wide X 8.5In Long Water-Resistant Up To 50 Meters Manufacturer's Limited Warranty Our Products Are 100% Genuine. In Some Cases We Purchase Merchandise From Trusted Independent Suppliers And Not Directly From The Brand Owner. In All Cases We Stand By The Authenticity Of Every Product Sold On Our Site.