If you’re looking for a 1-second time reference, you’d probably just grab a GPS module off the shelf and use the 1PPS output. As demonstrated by [InazumaDenki], though, an old quartz cl… ...

In particular, SWIZA is one of the rare “Manufactures” making its own mechanical and quartz movements. In its modern factory in Delémont (the Swiss Jura region), around 40,000 table clocks, alarm ...