Portal:Anniversaries/December 12
- 1965 — American astronauts Frank Borman and James A. Lovell, Jr. orbit the earth 206 times in 14 days aboard Gemini VII. The astronauts wear Omega Speedmaster watches on the mission.
- 1996 — Vendôme announces the acquisition of famed luxury brand Vacheron Constantin from Sheik Ahmed Zaki Yamani.