Honest. WonderHowTo was more than skeptical!
But then we consulted the pros at Learn-Orienteering.org and got a lesson in navigation.
The watch face is a proven substitute for the magnetic compass (but this tutorial is for Northern Hemisphere only).
"If you have an analog wrist watch, you can use the time to find north. Hold your watch up in front of you, and let the short hand point at the sun. While holding it like this, cut the angle between the red arrow and 12 o'clock in half, (noon-wards if the time is before 6am or after 6pm), that way is south."