Automatic Movement: Mechanically Powered And Wound By The Motion Of The Wearer's Arm Or Manual Winding Silver Stainless Steel Bracelet Foldover Push-Button Deployment Clasp Stainless Steel Bezel Encrusted With Stainless Steel Case Sapphire-Coated Mineral Crystal Screw-Down Crown Grey Dial With Luminous Silver Hands Date Display Case: 47Mm X 42Mm X 15Mm Bracelet/Strap: 20Mm Wide X 8.66In Long Water-Resistant Up To 200 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.