Brand Rolex Model (Watch) GMT-Master II Reference number 16710 Winding Automatic Case material Steel Strap material Steel Condition Used The item shows slight signs of wear, such as light scratches, but not perceptible to the touch. No original Rolex papers, no box used only for photographs not for sale One year shop warranty Automatic winding year 1991 Case Material Steel Diameter 40 mm Water resistant 10 ATM Bezel Material Steel Glass Sapphire Glass Dial Black Numerals on dial No numerals Strap Material Steel Strap colour Steel Clasp Material Steel Functions Date, GMT