Timepeice made by Swiss watchmaker Omega, the Speedmaster Pro was the first watch worn on the moon, by Buzz Aldrin: Neil Armstrong had hung his up in the LEM to better time the landing.

The Speedmaster Pro has a transparent sapphire back, and
an 18 jewel movement.

The newest model is the Speedmaster X-33, which is currently
given to those in the Space Shuttle and the ISS. The X-33 combines a quartz movement, as well as a high-contrast LCD display.

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