Gear clocks are nothing new, but each new design offers a little something different. You can watch in awe as the gears turn and display the hour, minutes, and seconds. It is almost hypnotic. And the best part is that it costs $20 —can you say cheap holiday gift? I sure can. [Product Page via GeekAlerts via BookofJoe]
The Long Now Foundation's 10,000 year clock is going to be the most amazing mechanical clock ever, see prototype 1. It doesn't even use gears in its display as they will wear out and lose time in a thousand years, instead it counts ticks mechanically in an "Adder/Intercallator mill". I stared at the parts at their museum and couldn't figure any out.