Digital clock projects have been with us since the 1970s, when affordable LEDs and integrated circuits became available. In 2026 most of them use a microcontroller, but for the AliExpress fans there’s one that goes straight back to the ’70s with a pile of logic chips. You can make it on the supplied PCBs, but that wasn’t for [ALTco]. Instead, he made the circuit in free form, using six metres of brass wire.

The construction is anchored together by a set of busbars that carry sockets for a set of seven-segment and driver modules. The circuit is typical for the day, with a crystal oscillator and divider chain feeding the counters for the displays. There are a few clever tricks that older engineers might recognize in order to reduce the chip count. In this case that’s negated by an extra set of circuitry allowing the time to be set from a rotary encoder.

We’re impressed by the intricacy of the device, made bit by bit without a plan, it as some wires what thread their way between others. It’s a truly beautiful piece, and it reminds us of our circuit sculpture contest back in 2020.