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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
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Due to the lack of existing factory records, our Seth Thomas database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.

Grade: 171

Private Label(s) in Run: Reton Bros. & Co. - Marinette, Wis.

Manufacturer: Seth Thomas
Manufacturer Location: Thomaston, Connecticut
Movement Serial Number: 73541
Grade: 171
Model: 2
Size: 18s
Jewels: 15j
Jewel Setting: Screw-Set
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Setting: Lever
Plate: 3/4 Plate
Regulator: Micrometer
Hairspring: Flat
Standard Dial Type: Single-Sunk
Adjusted: No
Movement Markings: Reton Bros. & Co.
Marinette, Wis.
Safety Pinion.
Pat'd Dec. 6, '87
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Verifications & Observations

  • January 10, 2019:
    Serial Number 73541 was reported as inaccurate
    Note: Grade fits 151or171or197or202, 15J micrometer
    regulator, Nickle finish
    Curator Response: Thanks for the report and images. Since it is not marked adjusted, the movement would be classified as a Grade 152 (after c.1893) or 171 (prior to c.1893). Both Grades are characterized as 18-Size, Model 2, Nickel, 15-Jewels in Settings, Unadjusted with a Micrometric Regulator.
    Changes since this report was submitted:
    Grade changed from 34 to 171
    Jewels changed from 7j to 15j
    Movement Finish changed from Gilt to Nickel
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