American Time & Signal Co. manufactures system seconday replacements for Dukane clocks with wired synchronous correction. The AllSync Plus^® replacement clocks use a solid state circuit board movement instead of the traditional mechanical movement and uses 80% less energy.

AllSync Plus 60th Minute Steel Case System Clocks $119.95 - $349.95		AllSync Plus 24SS Series Steel Case System Clocks $119.95 - $349.95		Mechanical 60th Minute Wired Synchronous Steel Case System Clocks $194.95 - $494.95
Mechanical Old Style 24 Series Steel Case System Clocks $219.95 - $539.95		Mechanical Replacements for 24SS Series Steel Case System Clocks $669.95