Case Brushed stainless steel case with solid caseback Strap Black calf leather strap with a IWC signed pin buckle Dial Black dial with applied Arabic numerals, railway minute track & superluminova hour marks & hands, small seconds at 6 o'clock Movement Nickel plated hand-wound movement, with perlage & Geneva stripes, Breguet hairspring & chatons Cal. 83 Movement No. 1080507 Case No. 1132611 / M13631 D= 35mm Year 21.02.1945