Automatic Movement: mechanically powered and wound by the motion of the wearer's arm or manual winding Silver-tone brushed and polished stainless steel bracelet Push-button deployment clasp Polished Stainless Steel bezel and case Sapphire crystal Push-pull crown Black With A Guilloche Center dial Case: 45mm in diameter x 13.5mm thick Bracelet/strap: 22mm wide x 8in long Water-resistant up to 50 meters 1-year limited third party warranty Our products are 100% genuine. A In some cases we purchase merchandise from trusted independent suppliers and not directly from the brand owner. A In all cases we stand by the authenticity of every product sold on our site.