While many Speedmasters are called "Moonwatches," the 105.012 and the 145.012 are the only two references that actually went to the lunar surface during the first landings. Your -66 reference sits right in the "sweet spot" of space-age history.




Omega Speedmaster Professional Reference 105.012-66, powered by the legendary Calibre 321 movement.

This specific reference is one of the most historically significant watches in existence because the 105.012 was the exact model worn by Neil Armstrong and Buzz Aldrin during the Apollo 11 mission. It is the "true" Moonwatch.

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Key Technical Details

• Reference Number: 105.012-66. The "-66" indicates the case was manufactured in 1966.

• Movement: Calibre 321. This is a column-wheel chronograph movement, renowned for its beauty and durability. The serial number 24,959,... visible on the movement confirms a production date around 1967, which is perfectly consistent with a -66 case back.

• Case Maker: The symbol inside the case back (a small "HF") identifies the case maker as Huguenin Frères, one of the two primary suppliers for Speedmaster cases at the time.

• The Bezel: This watch features a "Dot Over 90" (DON) bezel. If you look at the "90" on the tachymeter scale, the dot is located above the 90 rather than next to it. For collectors, this original bezel alone can be worth thousands of dollars.

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Condition and Features

Feature	Description
Καντράν	An Applied Omega Logo (AOL) dial. In 1968, Omega switched to printed logos, making these applied metal versions highly desirable.
ΚΑΣΑ	This was the first reference to feature the asymmetrical case, which added "shoulders" to protect the crown and pushers.
ΜΠΡΑΣΕΛΕ	The end links are marked 516, which suggests it is paired with a Reference 1039 flat-link bracelet. This is the period-correct bracelet and is quite rare to find in good condition.
Hands	It has the correct white baton hands and the "teardrop" chronograph seconds hand.