I recently picked up an analog wall clock from a school in North Dakota. It’s rare for these clocks to be on ebay these days, because the Lathem Time Clock Company didn’t make their “Airtime” line of clocks for very long. These clocks are controlled wirelessly from a little master clock I have elsewhere in the house. The master clock pulls in the clock signal from the Atomic Clock in Colorado and rebroadcasts the correct time to all compatible clocks. As far as I can tell, only Lathem Airtime clocks are compatible with this particular system.
Lathem had a few different styles of clocks available in the series, including a digital clock that I had hanging in this space prior to today, and a solar powered model that boosted its battery power by ambient light in a room.
The whole thing is very clever. And my family is happy I haven’t pulled wires through all the walls to power an older style clock system.
