Telechron is the name of a U.S. company that manufactured electric clocks between 1912 and 1992. "Telechron" is derived from the Greek words tele, meaning "far off," and chronos, "time," thus referring to the transmission of time over long distances. Founded by Henry Ellis Warren, Telechron introduced the synchronous electric clock, which keeps time by the oscillations of the alternating current electricity that powers it from the electric power grid. Telechron had its heyday between 1925 and 1955, when it sold millions of electric clocks to American consumers.
Telechron 355 "Cathedral" (1927–32)
Telechron 2H07-Br "Administrator" (1937–40)
Telechron 7F72 "Heralder" (1930s)
Telechron 8B23 "Register" (1946–48)
An electric clock is a clock that is powered by electricity, as opposed to a mechanical clock which is powered by a hanging weight or a mainspring. The term is often applied to the electrically powered mechanical clocks that were used before quartz clocks were introduced in the 1980s. The first experimental electric clocks were constructed around the 1840s, but they were not widely manufactured until mains electric power became available in the 1890s. In the 1930s, the synchronous electric clock replaced mechanical clocks as the most widely used type of clock.
Telechron synchronous electric clock manufactured around 1940. By 1940, the synchronous clock became the most common type of clock in the United States
Electromechanical self-winding clock movement from Switzerland.
One of Alexander Bain's early electromagnetic clocks, from the 1840s
Gents' of Leicester Pulsynetic, C40A, Waiting Train, Turret Clock (1940s/50?). Photographed in the Ministers' Building (The Secretariat), Yangon.