Commander Tom Stafford appears to have kept with his ref 105.003. S/N 27. This was a straight lugs case (the only straight lugs on an Apollo mission?) and has been displayed at the Omega museum, and is reportedly been on two missions with Stafford- Gemini 9 and Apollo 10. There is also evidence that Stafford wore an asymmetric case (105.012-CB?) during training.
John Young, wore a ref 105.012-65 (verified- National Air and Space museum).

Summary;


Tom Stafford: ref 105.003?

John Young: ref 105.012-65 (verified)

Eugene Cernan: ref 105.012-65


All picture credits gratefully to NASA and the Smithsonian Air and Space museuem.

 

Awesome

 

@Omega1967
Take care when posting NASA photos showing the astronauts wearing a Speedmaster as the photo of Thomas Stafford was taken during training ( no beta cloth mission logo emblem on his left chest of the spacesuit ).
During actual (preflight) mission preparations the astronauts wore the mission logo on the spacesuit...
More Speedmaster-Spaceflight photos can be found at MoonwatchUniverse: https://moonwatchuniverse.tumblr.com/archive

 

Yes, indeed, the CB case was during training as mentioned thank you!

 

Launchday May 18, 1969... it looks like Apollo 10 CMP John Young wore a second Speedmaster on JB Champion steel mesh bracelet...
.

 

2:10 LMP Eugene Cernan JB Chamion on steel mesh left wrist
4:10 Comd Thomas Stafford start the chronometer on his Speedmaster (black velcro)
4:33 CMP John Young start to wiggle, JB Champion left wrist
11:11 both Young & Cernan JB Champion visible...
.

 

CMP John Young prelaunch Apollo 10...
.