Omega Speedmaster cal. 861

Info from Omega:
-Speedmaster Professional - International Collection
-Movt. # 32'842'686
-Manual winding chronograph cal. 861 - 17 jewels
-Watch reference :ST 145.022 71 stainless steel case
-Black luminous dial with white luminous hands
-Manufactured and delivered to our Agents in New York ( USA) on June 12, 1974
(Lemania 1873)