Loading…
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:
Need to replace a watch crystal? Use our new crystal size guide to find the proper fit.

Grade: 940

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 138126
Grade: 940
Model: 1
To Finishing Dept: Oct 9, 1900
Run Quantity: 1,000
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
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
U.S. Patents: 832672, 427072
Data Research: 1953 Hamilton Serial List
Help us improve the database: Does this info describe your movement accurately?
Why Might This Information Be Incorrect?
Thanks for your help!
We have received your verification.

Data Confidence Rating:

Verifications & Observations

138001
Verification Serial Map
139000
  • March 24, 2019:
    Serial Number 138114 was reported as accurate
  • September 13, 2017:
    Serial Number 138762 was reported as accurate
  • June 26, 2017:
    Serial Number 138245 was reported as accurate
  • October 16, 2016:
    Serial Number 138064 was reported as accurate
  • March 23, 2014:
    Serial Number 138084 was reported as accurate
  • March 18, 2014:
    Serial Number 138621 was reported as accurate
  • February 9, 2014:
    Serial Number 138496 was reported as inaccurate
    No further details were submitted with the report.
  • November 23, 2013:
    Serial Number 138806 was reported as accurate
  • June 7, 2013:
    Serial Number 138326 was reported as inaccurate
    Note: Private label movement with different name and
    town on face
    Changes since this report was submitted:
    Plate changed from Unknown to Full
  • April 8, 2013:
    Serial Number 138621 was reported as inaccurate
    Note: Full plate
    Changes since this report was submitted:
    Plate changed from Unknown to Full
  • March 28, 2013:
    Serial Number 138032 was reported as accurate
  • February 9, 2013:
    Serial Number 138126 was reported as inaccurate
    Note: 138126 is full plate. Private label movement is
    marked HCIP, typically denoting adjusted to Heat,
    Cold, Isocronism and Position (6)
    Changes since this report was submitted:
    Plate changed from Unknown to Full
  • June 7, 2012:
    Serial Number 138342 was reported as accurate
1