Elektor has a long history of publishing clock projects. Let’s take a look at a classic — the MOS Clock 5314. The design ...

This clock is a refinement of a type of construction that has been called “air chassis”, just about always a very temporary circuit, supported only by the stiffness of component leads.

In this case, [Jeremy Cook] put one to work as the faceplate for his “742 Clock,” a name that plays on the fact that his seven-segment display is 42 mm tall, plus it’s “24/7” backward.