Omega Speedmaster Professional Circa 1976 Cal. 861
Stainless steel Omega, “Speedmaster Professional,” made circa 1976, is the NASA certified stainless steel round button chronograph with registers, tachometer and Omega link bracelet with flip lock clasp. The stainless steel tonneau case, 40mm x 46mm, has a screwed-down back with NASA logo, tachometer graduation on the bezel to 500 UPH, lyre lugs. The black dial features luminous baton indexes, subsidiary dials for the seconds, the 12-hour and 30-minute registers, and luminous white baton hands. The 17 jewel manual wind caliber 861 movement is warrantied by Aaron Faber for 2 years.