Model : PVD Black coated Brushed SS Case, Black GMT Dial, Yellow Numeral Hour Markers and Needles Special Shape Rubber Strap with Insignia BuckleMovement: Asian 2813 Automatic Movement, 21J , GMT hand individually Settable Functions : Hours, Minutes, Second, GMT (2nd Time Zone) , Date (Set via Crown) Dimensions : Width 46mm x Height 46mm x 18.5mm ThkMaterial: 1piece forged/Engraved case construction, solid 316 stainless steel, Thick PVD Black Coating .. Back: Solid Case back with Detail Engraving Crown: One-piece Screw Down crown with o ring Crystal: Synthetic Sapphire, AR Coated Water-resistant