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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 "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: 305

Mixed Run: Model 6 and Model 7 Movements

Manufacturer: Illinois
Manufacturer Location: Springfield, Illinois
Movement Serial Number: 3791453
Grade: 305
Model: 7
Estimated Production Year: 1920
Run Quantity: 2,300
Total Production: 150,270
Size: 16s
Jewels: 17j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Bridge Type: False Center
Double Roller: Yes
Barrel: Going
Adjusted: Yes
Adjusted to Temperature: Yes
Railroad Grade: No
Dial Feet Locations: 17.5, 39.0, 58.0
Case Screw Locations: 3.0, 38.0
Research Note: Original records indicate Model 7 (Openface). However, multiple reports indicate Model 6 (Hunting).
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Data Confidence Rating:

Verifications & Observations

3790001
Verification Serial Map
3792300
  • October 9, 2019:
    Serial Number 3791993 was reported as accurate
    Changes since this report was submitted:
    Movement Configuration changed from Hunting to Openface
    Factory Model changed from 6 to 7
  • September 25, 2019:
    Serial Number 3791993 was reported as inaccurate
    Note: Thanks for the info about the Model 10. It is
    definitely NOT a Model 6. I am currently servicing
    it for a client, and it is an open face (not a
    sidewinder). If you like, once I have completed
    the service I can send a photo to verify.
    Curator Response: Perfect. A photo would be beneficial for evaluation. I suspect it is a Model 7 (Openface) since this run appears to be mixed with Model 6 and Model 7. Thanks!
    Changes since this report was submitted:
    Movement Configuration changed from Hunting to Openface
    Factory Model changed from 6 to 7
  • September 20, 2019:
    Serial Number 3791993 was reported as inaccurate
    Note: Illinois Serial 3791993 appears to be a Model 10,
    16 size, 17 jewel, open face, 3/4 bridge (faux
    center bridge), stem wind, pendant set, damascened
    nickle, "adjusted", "double roller", with swan
    neck regulator adjustment.
    Curator Response: Thanks for the report. The Model 10 was exclusively manufactured in the "Sangamo Special" grade. The Grade 305 was produced in Model 6 (Hunting) and Model 7 (Openface).
    Changes since this report was submitted:
    Movement Configuration changed from Hunting to Openface
    Factory Model changed from 6 to 7
  • March 19, 2019:
    Serial Number 3790134 was reported as inaccurate
    Note: Not an open face. Hunting case and the two
    lower silver discs are opposite.
  • June 7, 2018:
    Serial Number 3790221 was reported as accurate
  • March 31, 2018:
    Serial Number 3792015 was reported as accurate
  • June 20, 2017:
    Serial Number 3790435 was reported as accurate
  • August 17, 2016:
    Serial Number 3791312 was reported as accurate
  • February 23, 2016:
    Serial Number 3790192 was reported as accurate
  • January 28, 2016:
    Serial Number 3791052 was reported as accurate
  • July 30, 2015:
    Serial Number 3791846 was reported as accurate
  • May 31, 2015:
    Serial Number 3791130 was reported as accurate
  • January 26, 2015:
    Serial Number 3791453 was reported as accurate
  • August 26, 2014:
    Serial Number 3790803 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • February 16, 2014:
    Serial Number 3790808 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • January 11, 2014:
    Serial Number 3790546 was reported as inaccurate
    Note: This S/N is a Model 6 hunting movement, Thanks
    for your hard work..
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • December 20, 2013:
    Serial Number 3791364 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • February 5, 2013:
    Serial Number 3790601 was reported as accurate
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
  • February 2, 2013:
    Serial Number 3790640 was reported as inaccurate
    No further details were submitted with the report.
    Changes since this report was submitted:
    Plate changed from 3/4 to Bridge
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