Omega speedmaster moon

The Omega Speedmaster Moonwatch, NASA's iconic chronograph, was the first watch worn on the Moon during Apollo 11 in 1969.

About this subject

The Omega Speedmaster Moonwatch is one of history's most iconic timepieces, renowned for its role in NASA's Apollo space missions. It was officially qualified by the agency in 1965 after rigorous testing that included exposure to extreme temperatures, shocks, vibrations, and vacuum. Since then, it became the official chronograph for all manned missions, including the historic Apollo 11, when Buzz Aldrin wore it on the lunar surface on July 20, 1969.

The model referred to as "Moonwatch" originally featured the manual-wind caliber 861, succeeded by the 1861 and, in modern versions, the coaxial caliber 3861. Its 42 mm stainless steel case, Hesalite (acrylic) crystal, and black tachymeter bezel remain faithful to the original design. The choice of Hesalite over sapphire was deliberate: it is more impact-resistant and does not shatter if broken, preferred by NASA for safety in zero-gravity environments.

Beyond its historical role, the Speedmaster Moonwatch is valued by collectors and enthusiasts as a testament to robust and reliable engineering. Omega has maintained the classic design over the decades, with subtle technical updates such as Master Chronometer certification for the latest models. Its space heritage is celebrated through special editions, like the Speedmaster Moonwatch Professional, which honors the Apollo missions.

Frequently Asked Questions

What makes the Omega Speedmaster Moonwatch so special?

Its NASA certification for spaceflight and use on the Moon make it a historical icon, representing space exploration and precision engineering.

Which movement powers the Speedmaster Moonwatch?

Originally the caliber 861, then 1861, and currently the coaxial caliber 3861, all manual-wind with chronograph function.

Is the Hesalite crystal different from sapphire?

Yes, it is acrylic. It is more impact-resistant and does not shatter, a feature preferred by NASA for safety in space missions.