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: No. 645

Mixed Run: Pendant-Set and Lever-Set Examples

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 17179288
Grade: No. 645
Model: 1908
Estimated Production Year: 1908
Run Quantity: 2,000
Total Production: 59,300
Size: 16s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant    Mixed Run
Plate: 3/4 Plate
Double Roller: Yes
Barrel: Jewelled Motor
Regulator: Patent
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Data Research: 1954 Waltham "Gray Book" List
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Data Confidence Rating:

Verifications & Observations

Verification Serial Map
  • December 14, 2019:
    Serial Number 17178227 was reported as inaccurate
    Note: 16s, 21j, Lever Set, adj 5 pos
  • November 12, 2018:
    Serial Number 17178338 was reported as accurate
  • November 9, 2018:
    Serial Number 17178338 was reported as accurate
  • November 8, 2018:
    Serial Number 17178338 was reported as accurate
  • October 4, 2018:
    Serial Number 17178338 was reported as accurate
  • November 23, 2017:
    Serial Number 17178252 was reported as accurate
  • April 22, 2017:
    Serial Number 17178530 was reported as accurate
  • March 1, 2017:
    Serial Number 17178495 was reported as inaccurate
    Note: this movement #17178495 was 495 in a run to
    1718000 . it is lever set, main wheel is
    jeweled,has a patent regulator and requires
    position grade material for repair.
    could the "P"in the material list have
    been mistaken to indicate pendant setting
  • January 3, 2017:
    Serial Number 17179915 was reported as accurate
  • November 5, 2016:
    Serial Number 17178495 was reported as inaccurate
    Note: ref. complete price guide to watches #35 page 24
    lists american railroad approved watches circa
    1930 . waltham vanguard,crescent street, 645,
    riverside are all listed
    Curator Response: Thanks for the report. We currently have this run as pendant-set, which would not have been accepted for railroad service on most American railroads after 1908. The estimated manufacturing date for this run is right at that cusp.
  • August 21, 2014:
    Serial Number 17179941 was reported as accurate
  • August 15, 2013:
    Serial Number 17179950 was reported as accurate