"Build a unique clock for the ultimate DIY challenge today. Follow me, April Wilkerson, on The Craftistry for more DIY ...

It can be programmed manually through DIP switches or via a USB connection to another computer, and also includes an adjustable clock which can perform steps anywhere from 1 Hz to 32 kHz.

Retrograde clocks are unique, in that they eschew the normal fully-circular movement for the hands. Instead, the hands merely sweep out a segment of a circular arc, before jumping back to their ...