Jason Oliver with the time zone announced a message that the pro of Speedmaster had by the astronaut Deke Slayton was sold with a certain bidding. You can find it here.

Here an image of the watch:

I hope that the purchaser puts a new belt above! The loop seems to be Omega original (and during the good time). I really doubt of if I would never sell a personal membership such as a watch which joined to me on space flights.