Loading…
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:
Need to replace a watch crystal? Use our new crystal size guide to find the proper fit.

Mobilaero

 Watches
230
 Verifications
216
Back to Collection

Elgin 575 #J404250 Details

Image of Elgin 575 #J404250 Movement
Movement Image

Image of Elgin 575 #J404250 Dial
Dial Image

Image of Elgin 575 #J404250 Case
Case Image

575
16s
20
15j
Pendant
Flat
Goldfilled
Star Watch Case Co.
8787219
Cased and timed at Elgin factory.
Enamel
Single-Sunk
Arabic
Elgin * dp
The "dp" on the dial indicates the watch uses an Elgin "Durapower" mainspring made from "Elgiloy", which was essentially a cobalt alloy with excellent corrosion, high strength and temperature properties alloy spring and guaranteed not to or break. A remnant of ELGIN still exists today as Elgiloy Specialty Metals.

http://www.elgiloy.com/about/
Note: This model has simple regulator and no cap jewel on the second hand pivot. Adjusted to 4 positions.