Enter the serial number from the pocket watch movement below. Do not use the case number. Tips for looking up your watch

How to Find Info About Your Pocket Watch

The Pocket Watch Database has compiled data covering the major American pocket watch manufacturers and created an easy way to find information using the serial number on the watch movement. Here are a few tips to find information about your pocket watch:

  1. Always input the serial number from the pocket watch movement (the "mechanism" of the watch).
  2. Never use the serial number from the case or any other part.
  3. Always select the correct manufacturer, which is usually stamped on the watch movement or dial.
  4. If the manufacturer is not listed on the site, you may have a "private label" watch or it may not be American-made.
  5. If the serial number includes a letter, enter it along with the number when using the lookup feature.
  6. Many pocket watch case backs screw off. Others may require a dull wide blade to pry or pop the cover. Be careful not to scratch or damage the movement.
  7. Consider uploading images of your watch by creating a collection account on the website. This is compeltely free and assists in promoting research in American horology.
  8. Understand that many companies did not keep accurate or complete records. As a result, information displayed on this site may have inaccuracies. This is to be expected, and we have included an option to report inaccurate information on the result pages so the database can be continually improved.
Pocket Watch Serial Number Lookup - Hamilton, South Bend, Illinois, Rockford, Waltham & Elgin Pocket Watches
  Serial Number:
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Company Profile: Hamilton Watch Co.

Location: Lancaster, Pennsylvania

Years of Operation: 1892-1969

Factory Building Status: Still standing. Building has been converted into condos.

Company Timeline

September 26, 1874

E.F. Bowman creates a model watch at the Adams & Perry Watch Manufacturing Co.

April 7, 1876

The first movement was produced at the Adams & Perry Watch Manufacturing Company.

August 1877

Reorganized as the Lancaster Penn. Watch Co. in Lancaster, Pensylvania.

September 1879

The Lancaster Watch Co. had manufactured 334 movements.

May 1883

Reorganized as the Lancaster Watch Co.

April 1886

Reorganized as the Keystone Standard Watch Co.

The Times, Philadelphia, Pennsylvania
Saturday, October 22, 1892

October 1892

The Columbian Watch Co. is organized in Lancaster, Pennsylvania with a capital of $350,000.

October 1892

The Columbian Watch Co. absorbs the defunct Aurora Watch Co. and moves the factory machinery to Lancaster, Pennsylvania.

December 14, 1892

Reorganizaed as the Hamilton Watch Co.


First watch is produced by Hamilton Watch Co.

January 31, 1893

The first Hamilton Watch Co. movement is sold to W.C. Davis, a 17-Jewel Openface 936 Grade Movement, Serial #15.


The 940 Railroade grade watch is discontinued.


Purchased the Illinois Watch Co.


The Elinvar hairspring is patented and utilized in all Hamilton movements produced thereafter.


Hamilton Watch Co. obtains the rights to the "Howard" name.

October 15, 1940

The 992B Grade is introduced.


Last Hamilton watches are manufactured in the United States.