Thanks a lot for your response to this, you make good points that help me understand the interests and drives involved.
I appreciate your point about needing to be the right buyer, with the right subjective passions. I find the speedmaster + astronaut link very appealing, but my interests in provenance don't go much further than that (e.g. I probably wouldn't pay much of a premium for a watch worn by a celebrity).
Here's the link to Gene's watch in Aus, they're definitely asking a premium in this case
https://thewatchdealers.com.au/prod...50th-anniversary-gene-cernans-personal-watch/Click to expand...