Brand Omega Model (Watch) Speedmaster Professional Moonwatch Reference number 145.022 Manual winding Case material Steel Strap material Steel Condition Used (Excellent) The item shows signs of slight wear and tear, such as light scratches, but not perceptible to the touch. Original papers, no box Manual winding Base calibre 861 Case material Steel Diameter 42 mm Bezel material Aluminium Glass plexiglass Strap material Steel, year 1974