Astronauts and other spacefarers' dress watches

Don't know if besides the Omega Speedmaster, Fortis and Rolex topics, we're allowed another astronaut topic ?
But those were tool watch topics 😁
e.g. https://omegaforums.net/threads/ast...d-not-just-speedmasters-say-it-isnt-so.21667/

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Herewith two official 1964 NASA portraits in which Scott Carpenter and Donn Eisele wore rectangular dress watches.
Note Scott Carpenter even wore the tiny watch on a steel mesh Jacoby Bender Champion bracelet!
Any ID on these little gems ?
(Photos: NASA)
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A couple of years ago we have identified the little wrist watch which was always worn by surgical aerospace nurse Lieutenant Dolores Dee O'Hara as a little Lady Elgin Diamond women's watch.
This time another reminder of the cute little square "dress" wrist watch often seen on Scott Carpenter's wrist and sometimes a similar square watch worn by Neil Armstrong.
Any ideas what make these little "dress" watches could have been ?
(Photos: NASA)
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