Updated 4 April 2013.
Sangamo synchronous clocks were made by Sangamo Weston Ltd, Great Cambridge Road, Enfield, Middlesex. Sangamo was a pioneer in the development of synchronous electric clocks. It was a joint venture between the Sangamo Electric Company and the Hamilton Watch Company. In 1931 Sangamo were purchased by the General Time Instruments Corporation, the holding company for Westclox.
Synchronous clocks were marketed under the trade names Sangamo and Hamilton Sangamo. Sangamo movements were used in some Westclox and British Electric Meters Ltd clocks.
For more inforation on a clock click on the link.
LINZ J. Westclox electric. Atglen, PA: Schiffer Publishing Co., 2004.
WISE S J. Electric clocks. Second edition. London: Heywood & Company Ltd, 1951.
Sangamo model 504 synchronous wall clock S 53 Sangamo A
Clock marketed under another name
Magneta Style 406 F synchronous mantel clock S 23 Magneta A
Clock with a Sangamo movement
British Electric Meters Ltd synchronous mantel clock (1)
S 7 British Electric D
British Electric Meters Ltd synchronous mantel clock (2)
S 214 British Electric A
Clock with a Sangamo motor
Anonymous synchronous wall clock S 57 Anonymous B