The Timex Expedition I‘m wearing has an alarm, two time zones, date, digital plus old-fashioned hands, sez it‘s good to 100m, and "Indiglo" (which is really handy when you‘re all warm and cozy in your sleeping bag, trying to figure out how much more sleep you can get ... or when you‘re stumbling around in a dark tent and trying not to wake the sleeping guys who have loaded weapons ... ssshhh!)
It was really useful in Kabul before we had electricity, or when the generators went out (some dweebs actually had 110v radio/clock alarms that had to be reset when the generators hiccuped ... on an operation ... good grief ...)
It‘s also handy because it has a dark face (vice a white one that can be seen too easily by the wrong people ...).