The concept-only Sand+Time Watch is a digital timekeeper with a little stone age twist. In ordinary mode, it works like a conventional watch displaying hours at the top and minutes on the bottom. But in screensaver mode, the watch turns into a sand clock and you can watch “sand” drop from the top screen to the bottom. The rate of fall is set at a default of one minute but can be changed by the user.
If only this was for sale!