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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 "guts" of the watch).
  2. Never use the serial number from the case or any other part.
  3. If the serial number includes a letter, enter it along with the number when using the lookup feature.
  4. 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.
  5. Always select the correct manufacturer, which is usually stamped on the watch movement.
  6. If the manufacturer is not listed on the site, you may have a "private label" watch or it may not be American-made.
  7. 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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Grade: 940

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 539532
Grade: 940
Model: 1
To Finishing Dept: Mar 2, 1907
Run Quantity: 5,000
Total Production: 210,596
Size: 18s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Damaskeened
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Barrel: Going
Regulator: Goldthwait
Hairspring: Breguet
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 2.6, 18.0, 38.2
U.S. Patents: 832672, 427072
Data Research: 1953 Hamilton Serial List
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Data Confidence Rating:

Verifications & Observations

538001
Verification Serial Map
543000
  • July 29, 2019:
    Serial Number 539030 was reported as inaccurate
    Note: 539030 is a marked 946 23J Hamilton retailed by A.
    N. Anderson of Minneapolis
  • May 19, 2019:
    Serial Number 540381 was reported as accurate
  • April 27, 2019:
    Serial Number 538714 was reported as accurate
  • April 16, 2019:
    Serial Number 542639 was reported as accurate
  • April 9, 2019:
    Serial Number 542639 was reported as accurate
  • March 29, 2019:
    Serial Number 538714 was reported as accurate
  • February 16, 2019:
    Serial Number 539626 was reported as accurate
  • January 7, 2019:
    Serial Number 540521 was reported as accurate
  • December 8, 2018:
    Serial Number 540635 was reported as accurate
  • July 18, 2018:
    Serial Number 539373 was reported as accurate
  • April 25, 2018:
    Serial Number 542078 was reported as accurate
  • April 14, 2018:
    Serial Number 540985 was reported as accurate
  • April 2, 2018:
    Serial Number 538256 was reported as accurate
  • March 2, 2018:
    Serial Number 540923 was reported as accurate
  • December 17, 2017:
    Serial Number 542163 was reported as accurate
  • December 2, 2017:
    Serial Number 539468 was reported as accurate
  • November 29, 2017:
    Serial Number 539468 was reported as accurate
  • September 2, 2017:
    Serial Number 539251 was reported as accurate
  • June 30, 2017:
    Serial Number 540241 was reported as accurate
  • April 19, 2017:
    Serial Number 538191 was reported as accurate
  • April 14, 2017:
    Serial Number 539958 was reported as accurate
  • February 14, 2017:
    Serial Number 539165 was reported as accurate
  • February 4, 2017:
    Serial Number 542989 was reported as accurate
  • January 9, 2017:
    Serial Number 542365 was reported as accurate
  • January 8, 2017:
    Serial Number 542879 was reported as accurate
  • January 6, 2017:
    Serial Number 539516 was reported as accurate
  • December 4, 2016:
    Serial Number 539151 was reported as accurate
  • October 16, 2016:
    Serial Number 542970 was reported as accurate
  • August 23, 2016:
    Serial Number 542347 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • July 11, 2016:
    Serial Number 542657 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • January 10, 2016:
    Serial Number 541426 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • December 11, 2015:
    Serial Number 538360 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • November 25, 2015:
    Serial Number 539165 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • November 3, 2015:
    Serial Number 538707 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • October 31, 2015:
    Serial Number 541603 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • March 20, 2015:
    Serial Number 539612 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 26, 2015:
    Serial Number 541391 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 26, 2015:
    Serial Number 538697 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 26, 2015:
    Serial Number 538697 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 10, 2015:
    Serial Number 540302 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • January 16, 2015:
    Serial Number 541512 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • November 26, 2014:
    Serial Number 541391 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • November 19, 2014:
    Serial Number 542548 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • November 16, 2014:
    Serial Number 539532 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • August 26, 2014:
    Serial Number 540081 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • August 18, 2014:
    Serial Number 539532 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • August 13, 2014:
    Serial Number 540587 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • July 5, 2014:
    Serial Number 542885 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • June 16, 2014:
    Serial Number 541391 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 12, 2014:
    Serial Number 541824 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 3, 2014:
    Serial Number 540096 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 3, 2014:
    Serial Number 540096 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • October 18, 2013:
    Serial Number 539824 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • July 4, 2013:
    Serial Number 538500 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • May 26, 2013:
    Serial Number 541622 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • May 26, 2013:
    Serial Number 541906 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • February 2, 2013:
    Serial Number 538228 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • October 26, 2012:
    Serial Number 539867 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • October 23, 2012:
    Serial Number 539771 was reported as accurate
    Changes since this report was submitted:
    Double Roller changed from No to Yes
  • October 15, 2012:
    Serial Number 538778 was reported as inaccurate
    No further details were submitted with the report.
    Changes since this report was submitted:
    Double Roller changed from No to Yes
    Plate changed from Unknown to Full
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