IWC Silver Automatic Watch # IW356515 (Men Watch). Band Color : Black. Dial Color : Silver. Display Type : Analog. Item Shape : Round Shape. Band Material : Alligator Leather. Case Size Thickness : 9.5 millimetres. Case Size Diameter : 40 millimetres. Case Material : 19K Rose Gold. Clasp Type : Tang. Bezel Material : Fixed set with Diamonds. Bezel Function : Fixed set with Diamonds. Crystal : Scratch Resistant Sapphire. Water Resistant Depth : 30 meters / 100 feet meters. Movement Type : Automatic. Calendar Type : Date. Model Number:IW356515 IW35651 IW3565 IW356.