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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: 401724
Grade: 940
Model: 1
To Finishing Dept: Dec 20, 1904
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: Hamilton 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
Movement Markings: Hamilton Watch Co.
Extra.
Lancaster, Pa.
21 Jewels
Adjusted
Safety Pinion
Data Research: 1953 Hamilton Serial List
Research Note: Some Marked "Extra" and Feature Two-Toned Plates.
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Why Might This Information Be Incorrect?
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Data Confidence Rating:

Verifications & Observations

401001
Verification Serial Map
402000
  • December 30, 2018:
    Serial Number 401229 was reported as inaccurate
    Note: Not an "Extra" and is not 2 toned.
    Changes since this report was submitted:
    Movement Finish changed from Two-Tone to Nickel
  • June 26, 2018:
    Serial Number 401200 was reported as accurate
    Changes since this report was submitted:
    Movement Finish changed from Two-Tone to Nickel
  • September 11, 2017:
    Serial Number 401701 was reported as accurate
    Changes since this report was submitted:
    Movement Finish changed from Two-Tone to Nickel
  • May 22, 2017:
    Serial Number 401832 was reported as accurate
    Changes since this report was submitted:
    Movement Finish changed from Two-Tone to Nickel
  • April 23, 2016:
    Serial Number 401922 was reported as accurate
  • March 28, 2016:
    Serial Number 401475 was reported as accurate
  • November 13, 2015:
    Serial Number 401475 was reported as accurate
  • October 24, 2015:
    Serial Number 401117 was reported as accurate
  • August 9, 2014:
    Serial Number 401247 was reported as accurate
  • March 18, 2013:
    Serial Number 401139 was reported as accurate
  • February 25, 2013:
    Serial Number 401368 was reported as accurate
  • February 24, 2013:
    Serial Number 401368 was reported as accurate
  • February 23, 2013:
    Serial Number 401368 was reported as accurate
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