@Robert-Jan
It has been confirmed that an 861 went around the moon in the control module as part of a heat flow experiment.
Can't wait for the January 15, 2050 issue "The Omega Speedmaster Reference That Elon Musk Wore on Mars"
I know and we covered that (Apollo 17), as it was Ron Evans Speedmaster, but it was not on the Moon (but near the moon).
This said, while it is likely that a Speedmaster 105.003 was worn by Cernan during the Apollo 17 mission, it is not proven at all that it was worn during any of the three EVAs. Any watch, if any, could have been worn under the space suit by the moonwalkers, but this is merely a wishful speculation.
I would say your analysis is incorrect. You need to dig further into the photo archives to find evidence of Cernan wearing both his 105.003 on the JB Champion and the 105.012 on Velcro exteriorly while conducting his final EVA.
Cernan says he wore the 105.003 during his EVAs and this picture is most likely the best evidence he was in fact wearing it, at least during his final EVA.
NASA image AS17-145-2224 taken by Schmitt shortly after the 3rd EVA. Clearly the corner of the watch head and mesh bracelet are visible on his wrist.
So an Omega could be worn underneath the space suit but amazingly they question this could be done for any other (Pepsi bezel) watches;
https://omegaforums.net/threads/under-a-sleeve-of-a-spacesuit.106986/
And Eugene Cernan's NASA-issued Omega Speedmaster 105.003 NASA #28 now resides in the renewed Omega museum in Bienne...
Broken hesalite, without bezel and on a Jacoby Bender champion steel mesh bracelet
(Photo: MoonwatchUniverse)
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