Before, if you wanted to show the world that you're a photography nerd, you'd have to lug around your DSLR like you were a Japanese tourist from the 80's. Thankfully, there are simpler ways to show your love for photography these days, like this lens-themed wristwatch, the F-Stop.
You have a aperture design at the center of the watch face, letting the layman passerby asking you for the time know that you're into cameras. To continue the metaphor, you tell time by the F-stops, or the relative aperture size, marking off the hours.
Too bad the aperture decal doesn't change base on the f-stops, because that would really impress all your shutterbug friends.