I’m always amazed what I can’t do under stress. During a workout, it can take me three attempts to enter my four-digit iPhone passcode. When I was running my gun at SIG, I forgot to seat my SCAR’s mag properly. I NEVER forget to seat my SCAR mag properly. The trick to not screwing-up under stress: keep it simple. That’s why I’ll never carry a handgun with an external safety (unless that’s all there is) or wear anything but my Armorlite Captain Field Series AL307 watch [above]. I look at it, I see the time. Done. Day or night. Especially night, when the green Tritium H3 lighted tubes glow like a post-Oscar Sally Fields. (Make the jump for the nighttime view.) It sounds silly (a.k.a., paranoid), but I can think of a dozen scenarios where rapid time telling could be a matter of life and death. (A bump-in-the-night at 12:30am is a lot different from one at 3:30am.) So which watch do you wear?