Seth Thomas Alarm Clock

Made about 1908-1913, this clock features an eight-day movement with “long alarm” based on US Patent No. 896734 awarded to E. B. Latham and J. Walker of New York, New York. They assigned the patent to Seth Thomas Clock Co. of Thomaston, Connecticut.
The clock features an alarm that rings continuously for 20 minutes unless turned off. Once set, the alarm also rings routinely at the same time daily.
Currently not on view
Object Name
clock, alarm, seth thomas
date made
patent date
Thomas, Seth
overall: 10 in x 8 1/4 in x 4 7/8 in; 25.4 cm x 20.955 cm x 12.3825 cm
place made
United States
ID Number
catalog number
accession number
See more items in
Work and Industry: Mechanisms
Measuring & Mapping
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Robert G. Rolfe

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