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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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Rockford Grade 555 Research

Rockford Grade 555 Advertisement from 1907
Grade 555 Not Pictured

Rockford Watch Catalog c.1907

Publication Date: c. 1907

Page: 8

Grade:555
Manufacturer:Rockford
Size:16s
Configuration:Openface
Finish:Nickel
Finish Description:A Well Finished Watch
Jewels:17j
Jewel Count Marked:Yes
Jewel Setting:Screw-set
Jewel Description:17 Jewels, In Settings
Adjusted:Yes
Adjusted Marked:Yes
Adjusted To Temperature:Yes
Adjusted # Positions:3
Adjusted Description:Adjusted to Temperature and Three Positions
Regulator:Patent Micrometric Regulator
Hairspring:Breguet
Balance:Compensation
Dial Material:Glass Enamel
Dial Type:Double-sunk
Description:No. 550 Hunting
No. 555 Open Face

Bridge $33.00

Nickel, 17 jewels, in settings, adjusted to temperature and three positions, closely timed. Compensating balance, bevel train, steel escape wheel. Breguet hair spring of best quality. Safety Pinion. Patent micrometric regulator, double sunk glass enamel dial. A well finished watch and a durable timekeeper.
Price:$33.00