Speedmaster, Reference 145.012-67 | A stainless steel chronograph wristwatch | Circa 1967 Omega Speedmaster, Reference 145.012-67 A stainless steel chronograph wristwatch Circa 1967 Dial: black Calibre: cal. 321 manual winding, 17 jewels Movement number: 25'003'902 Case: stainless steel, screw-down case back Size: 42 mm diameter Signed: case, dial and movement Box: no Papers: no Accessories: none