@jsducote
Swiss astronaut Claude Nicollier flew on 4 space shuttle missions and has worn several watches during these missions...
Nicollier was the first to wear an Omega X-33 prototype on STS-75 Columbia in February-March 1996... if he wore the Breitling Aerospace, it was probably on STS-103 Discovery in December 1999
Here's a great NASA/ESA photo taken during STS-75 "Columbia" in February 1996, showing European astronauts Claude Nicollier and Umberto Guidoni at the lower middeck of the shuttle orbiter wearing the extra long black plastic strap for their CASIO watch over the pumpkin spacesuit.
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@Omegafanman
If my memory serves right, the question was asked if Eugene Cernan's NASA-issued Omega Speedmaster 105.003 was worn on Apollo 10 without a bezel... although there's good video footage of the Apollo 10 crew playing around with in the capsule, this June 1969 photograph clearly showed that Cernan's Speedmaster was missing its bezel !

 

He made up for that on Apollo 17. A few extra 321 Speedmasters with Bezel flown on that mission as you know. It is funny that the only close up video of a Speedmaster running in an Apollo command module from Apollo 17 (Heat flow experiment) is an 861 movement with no bezel..@ the 11:04 mark in this video..

 

Not a NASA photo, but very interesting... The Gemini IV astronauts meet cosmonaut Yuri Gagarin during the June 1965 Paris Air Show...
Up to the 1970s, the international Paris Air Show would be the scene of meetings between American astronauts and Soviet-Russian cosmonauts, triggering events to let Omega management carefully approaching the Soviet Russian space programme...
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1964, Walter "Wally" Schirra taking his personal Omega Speedmaster CK2998 chronograph for a swim & dive in his personal pool...
(Photos: LIFE magazine - Ralph Morse)
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Straight lug JB Champion band, by the looks of it.

 

I have almost forgotten what it was like to rely on my wristwatch as a timekeeping instrument - and THE timekeeping instrument for my life.

 

July is Gemini X month...
Middle thumbnail shows Collins checkinghis fully wounded Speedmaster before launch... July 18, 1966

 

First CJ on the Moon!

 

July 1975 was Apollo-Soyuz month... First meetup of American General Thomas Stafford and Soviet-Russian General Nikolayev in 1972
NASA photo S73-046-S
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49 years ago... August 2, 1971
Popular science experiment conducted by Apollo 15 commander David Scott, wearing a 44 mm Bulova chronograph, demonstrating all objects no matter their mass, fall at the same speed in a given gravity field without atmospheric drag... as predicted by Galileo Galilei !
(Photo NASA & EH Space Art painting with permission)
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Lots of photos showing the 44 mm diameter Moonflown & lunar EVA worn Bulova 885104 prototype chronograph on David Scott's wrist...
MoonwatchUniverse will keep those for the 50th anniversary of Apollo 15 next year 2021...
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Yes, pilots & astronauts are also excited when they receive a wristwatch as a gift.... aren't we all ?
Moreover when they were given a wristwatch as a present, during public events or ceremonies, it was often an Accutron pilot watch !
Perhaps obvious to be given such a US-made gift in the USA ...
June 1965, astronauts Alan Shepard and Edward White take a look at an Accutron Astronaut pilot watch during a post-Gemini IV ceremony...
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Former USMC naval aviator & NASA astronaut Gerald "Jerry" Carr, who in 1973 ~ 1974 led the record-setting SL-4 final mission on the first U.S. space station, Skylab, has passed away at the age of 88... R.I.P.
These NASA photos show Commander Carr wearing an Omega Speedmaster and Movado Datron chronographs post-recovery on 8th February 1974 onboard USS New Orleans in the Pacific Ocean off the coast of San Diego...
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September 1973... Skylab-3 returned to Earth...
Naval aviator PhD NASA SL-3 backup astronaut Don Leslie Lind wore a Seiko 6139 automatic chronograph during Skylab training...
Lind later flew on space shuttle Challenger STS-51-B in april 1985...
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With the upcoming " 50 years NASA Snoopy award " Speedmaster, it's noteworthy that there's lots more to the Snoopy & Charlie Brown story, especially when checking out the Apollo 10 history 1969 - 2019
https://www.universetoday.com/142505/apollo-10s-snoopy-lunar-lander-may-have-been-found-in-space/
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With all the latest talk about a possible return of the " 60-minutes " bezel... at least an after market in the running at radialproject.com
We have to show yet another photo of a NASA astronaut wearing his " 60-minutes " bezel Speedmaster... David Scott in November 1971
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Almost none, but still just a couple of unscanned gems, which I might post to celebrate " 5 years MoonwatchUniverse "
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Here is my contribution...... Hanging on the wall in my Den.