Rolex brand Model (Watch) GMT-Master Reference number 1675 Automatic winding Case Material Steel Strap material Steel Year of manufacture 1980 Condition Used (Excellent) The item shows slight signs of wear, such as light scratches, but not perceptible to the touch. Kit original documents, no box, Automatic winding Case Case Material Steel Diameter 40 mm Bezel material Steel Glass Plexiglas One-year shop warranty - 25% AUCTION COMMISSION