I have to admit, I based my entire idea of that concept on this article:

https://www.fratellowatches.com/value-proposition-the-40-space-watch-from-casio-right-under-your-nose/#gref

“But unique horological features aside, this is a G-Shock. As many have come to find, the 200m water resistance and 10m shock resistance seem to be mere stopping points in Casio’s testing regime rather than true indications of the hardships these watches can actually endure. Yet, and here’s the twist: for all its beefy construction and expansive timing functions, the G-Shock square series still falls short of the Speedmaster’s inherent strength — its mechanical core. There are no recorded instances, that I know of, of a quartz-powered, LCD-screen equipped watch making its way out of the cushy oxygen-rich pressurized capsule of a shuttle or space station and into the vacuous endlessness of open space. LCD apparently doesn’t do well under direct, un-atmosphere-mitigated sun radiation, among other potential shortcomings. But this watch was never intended to replace the Speedmaster: it was intended to fill in the gaps where the Moonwatch falls short. And you know what? For about 1/100th of the price of that “other” space watch, that’s a shortcoming I’m willing to overlook. Because, honestly, I’m not equipped to survive the vacuum of space either.”

• as written by Thomas Stover, appeared on Fratellowatches in 2021.

I love that foto of the mrw-200. A true tool. Thanks for sharing that article.

I learned that an LCD screen is not very useful in unprotected aerospace, I think the radiation is more than it can handle. So the raw space might kill the g shock on a spacewalk. Wich makes an automatic preferable. I find it shocking that there is so little public information about it, even though space travel and watch culture are so deeply connected. Most info you can find is about speedmasters.