Like most flip clocks from the 60s and 70s, the Copal clock uses a small synchronous AC motor to advance the digits. Because this motor runs in step with the mains frequency, it also acts as the ...

Oh sure, there are flip-up digital clocks and all manner of mechanical seven-segment displays, but this one seems to be quite unique, and very pleasing.

Flip Clock ' is a free plug-in for OBS that displays the current time on the streaming screen with a smooth animation of a flip clock, and also has functions such as a stopwatch and timer ...