Automatic Movement: Mechanically Powered And Wound By The Motion Of The Wearer's Arm Or Manual Winding Blue Genuine Leather Strap Strap Buckle Clasp Stainless Steel Bezel Encrusted With Stainless Steel Case Sapphire-Coated Mineral Crystal Push/Pull Crown White Dial With Luminous Blue Hands Date Display Case: 50Mm X 44Mm X 12Mm Bracelet/Strap: 22Mm Wide X 9.76In Long Water-Resistant Up To 50 Meters Manufacturer's Limited Warranty It Is Customary To Treat Most Gemstones To Achieve Enhanced Color And Durability. Some Of These Treatments May Not Be Permanent, And May Require Special Care.