This clock can be made in 5 minutes and looks absolutely awesome!
Step 1: The Only Step
All you will need for this project is a wrist watch, a hard-disk platter, a hobby knife, and some pliers.
Start by disassembling the watch. Break of the little knob on the side of the watch used for setting the time. Take off the back and remove the plastic piece. Now, you should be able to take out the watch face with the clockwork. Then, simply slide what's left of the time setting rod under the edge of the hole in the hard-disk platter and center the watch face over the hole. You don't even need to glue it in as the time setting rod will hold it in the hole all by itself.
That's it! Now you have a gorgeous clock you can put on your desk! Just be careful not to touch the hands of the watch.