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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
  Serial Number:
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Rockford Grade 845 Pocket Watch

Grade: 845

Private Label(s) in Run: Plymouth Watch Co. - King Edward

Manufacturer: Rockford
Manufacturer Location: Rockford, Illinois
Movement Serial Number: 664580
Grade: 845
Model: 10
Estimated Production Year: 1905
Run Quantity: 900
Total Production: 1,200
Size: 18s
Jewels: 21j
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Adjusted: Yes
Adjusted to Temperature: Yes
Railroad Grade: Yes
Movement Markings: King Edward
Plymouth Watch Co.
U.S.A.
21 Jewels
Adjusted
Data Research: c.1907 Rockford Serial List
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Data Confidence Rating:

Verifications & Observations

664101
Verification Serial Map
665000
  • June 20, 2018:
    Serial Number 664844 was reported as accurate
  • April 30, 2018:
    Serial Number 664669 was reported as accurate
  • April 9, 2018:
    Serial Number 664945 was reported as accurate
  • March 7, 2018:
    Serial Number 664501 was reported as accurate
  • March 7, 2018:
    Serial Number 664501 was reported as accurate
  • January 1, 2018:
    Serial Number 664669 was reported as accurate
    Changes since this report was submitted:
    Grade changed from Unknown to 845
  • July 26, 2017:
    Serial Number 664669 was reported as accurate
    Changes since this report was submitted:
    Grade changed from Unknown to 845
  • October 20, 2015:
    Serial Number 664655 was reported as inaccurate
    Note: MODEL: 10; MOVEMENT CONFIGURATION: HUNTING;
    MOVEMENT FINISH: NICKEL WITH GOLD LETTERING; LEVER
    SET; FULL PLATE; NAME ON MOVEMENT: KING EDWARD;
    PLYMOUTH WATCH CO.
    Changes since this report was submitted:
    Grade changed from Unknown to 845
    Factory Model changed from 0 to 10
  • February 15, 2015:
    Serial Number 664666 was reported as accurate
    Changes since this report was submitted:
    Grade changed from Unknown to 845
    Factory Model changed from 0 to 10
  • January 22, 2015:
    Serial Number 664580 was reported as inaccurate
    Note: Plymouth Watch Co King Edward hunter Nickle full
    plate Model 8
    Changes since this report was submitted:
    Grade changed from Unknown to 845
    Factory Model changed from 0 to 10
  • March 12, 2014:
    Serial Number 664917 was reported as inaccurate
    Note: 21 Jewels, Adjusted to Heat & Cold
    Changes since this report was submitted:
    Grade changed from Unknown to 845
    Jewels changed from ? to 21j
    Factory Model changed from 0 to 10
    Railroad Grade changed from No to Yes
  • February 6, 2014:
    Serial Number 664886 was reported as inaccurate
    Note: 21 jewels
    Changes since this report was submitted:
    Grade changed from Unknown to 845
    Jewels changed from ? to 21j
    Factory Model changed from 0 to 10
    Railroad Grade changed from No to Yes
28
Rockford Grade 845 Pocket Watch