If you're really crazy about photography, take a look at this F-stop Watch. Instead of displaying 1 to 12 on the face of the timepiece, this quirky analog watch uses aperture numbers such as F2, F5.6, and F11 to tell the time. It's unclear if the iris shown behind the needles will open and close to correspond with the F figure (smaller number, larger opening, and vice versa). If so, that'll make this watch really cool for photographers.
The F-Stop Watch can be found on the NeatoShop for $39.95.