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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Grade: 83

Private Label(s) in Run: T. H. Gill - Marengo, Ill.

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 417515
Grade: 83
Model: 8
Estimated Production Year: 1893
Run Quantity: 500
Grade/Model Run: 25 of 32
Total Production: 21,100
Size: 18s
Jewels: 17j
Jewel Setting: Screw-Set
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Inlay Color: Black
Movement Setting: Lever
Plate: Full Plate
Regulator: Type 6
Hairspring: Breguet
Escapement Type: Straight-line
Adjusted: Mixed
Movement Markings: R.W.Co.
Rockford Ill.
Data Research: 1907 Rockford Serial List
Research Note: Rockford Serial Lists designate this run as featuring 17 Jewels instead of 15 like other Grade 83 runs. #417681: Verified as Marked "17 J" with features more consistent with the Grade 82. #417515: Verified as Private Label Marked "T. H. Gill - Marengo, Ill." with 17 Jewels.
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Data Confidence Rating:

Verifications & Observations

Verification Serial Map
  • December 5, 2019:
    Serial Number 417515 was reported as inaccurate
    Note: This unit is a private label marked "T. H. Gill,
    Marengo, Ill." on both the SS dial and the 17J
    movement. Jewels verified. Unique checkerboard
    pattern. See collection.
    Changes since this report was submitted:
    Jewels changed from 15j to 17j
  • October 28, 2019:
    Serial Number 417681 was reported as inaccurate
    Note: Marked 17J, verified accurate. Also marked
    adjusted. See collection. The description of a
    model 82 fits this movement better than that of a
    model 83.
    Changes since this report was submitted:
    Jewels changed from 15j to 17j
  • November 29, 2017:
    Serial Number 417684 was reported as accurate