IWC Slate Hand Wind Watch # IW546301 (Men Watch). Band Color : Brown. Dial Color : Slate. Display Type : Analog. Item Shape : Round Shape. Band Material : Alligator Leather. Case Size Thickness : 11 millimetres. Case Size Diameter : 43 millimetres. Case Material : 18 kt White Gold. Clasp Type : Tang. Bezel Material : Fixed 18 kt White Gold. Bezel Function : Fixed 18 kt White Gold. Crystal : Scratch Resistant Sapphire. Water Resistant Depth : 30 meters / 100 feet meters. Movement Type : Hand Wind. Model Number:IW546301 IW54630 IW5463 IW546.