ShakenWatch is the brand new iPhone application which reproduces the mechanism of automatic (self winding) wristwatches.
Set time by adjusting the hour and minute hands spinnig the crown as you would do with a real mechanical wristwatch and shake your iPhone keeping it tight in your hand to recharge the mechanism: you will see the eccentric weight swinging around.
What are you waiting for? ShakenWatch!
The application works on Ipod Touch (all versions) and iPhone (all versions)