Rather than waist pixels keyboarding elaborate background situations, . . . what wristwatches are preferred by Navy SEALs, Rangers, or Astronauts? I'm pretty sure Smart watches wouldn't be worn because non-scrambled cell phones wouldn't be usable. Excepting Astronauts, I doubt any would be a government issue. So what watches do most prefer?

My prejudices include mechanical watches and those having replaceable batteries.

Astronauts

In the past Omega Speedmaster and Bulova Lunar.

I believe that they used the Omega Quartz Skywalker