Although the title of this post is NASA/Speedy Experts I am neither but I have done some research on the subject.
I am aware that there are conflicting views but from memory Gene Cernan in his autobiography (read about 3 years ago) is pictured with and comments on his 105.003 with missing bezel as the watch he wore on the moon.
Eugene Cernan, now an Omega ambassador, still wears his Speedmaster, the one that he took onto the moon in the final Apollo 17 mission in December 1972 (and even before: he already had the watch for Gemini 9A, 1966, and Apollo 10, 1969).
He says, “The Speedmaster is the only thing we took the Moon that had no modification whatsoever – it was right off the shelf. What’s interesting about my first one is that it’s beat up, it’s never been cleaned, it’s never been repaired and to this day I can take that watch and wind it and it keeps time as well as the day I got it.
And I’ve walked in space with it for two and a half hours and worn it on the Moon for over three days.”
I don't mind being corrected but it seems that we are both hanging our hats on a museum label.
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