Invicta Charcoal Dial Black Ion-plated Band Watch # 18308 (Men Watch). Band Color : Gray. Dial Color : Charcoal. Display Type : Analog. Item Shape : Round Shape. Band Material : Stainless Steel. Case Size Thickness : 21 millimetres. Case Size Diameter : 54 millimetres. Band Width : 26 millimetres. Bezel Material : Black Ion-plated. Movement Type : Quartz. Calendar Type : Date display between 4 - 5 o'clock positions. Model Number:18308 1830 183 18.