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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Illinois Grade 305 Research

Illinois Grade 305 Advertisement from 1915

Dearborn Watch & Clock Co. Catalog

Publication Date: c. 1915

Page: 90

Configuration:Openface or Hunting
Jewel Count Marked:Yes
Jewel Description:17 Jewels
Adjusted Marked:Yes
Adjusted To Temperature:Yes
Adjusted Description:Adjusted To Temperature
Regulator:Patent Regulator
Watch Co.
17 Jewels
Movement Font Style:Block
Dial Type:Double-sunk
Description:16 Size Illinois No. 305
17 Jewel Nickel Movement
17 jewels, adjusted to temperature, compensating balance with timing screws, steel escape wheel, rounded arm train wheels, gold center wheel, Breguet hairspring, patent regulator, double sunk dial.
No. 1691 Hunting style, pendant set. $29.65
No. 1692 Open face style, pendant set. $29.65