Omega Speedmaster | Missions Collection | Gemini VIII 3597.06 | Box & PapersOmega Speedmaster Gemini VIII Ref. 3597. 06 This timepiece was created in honor of the 1966 Gemini VIII mission, this 42mm stainless steel chronograph features a unique dial with the Gemini VIII mission patch at 9 oclock. Powered by the manual wind Caliber 1861, it carries the same movement lineage worn on space missions by NASA astronauts. A limited commemorative edition, it stands as a rare collectors piece celebrating Omegas enduring role in space