Portal:Anniversaries/December 10
- 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.
- 2013 — Piaget introduces the ultra-thin Altiplano 900P, the world's thinnest mechanical watch with a movement integrated into its case
- 2018 — Girard-Perregaux introduces the Laureato Perpetual Calendar prior to SIHH.