Mainsprings for American made Waltham watches can also be ordered at the bottom of the page by the serial number stamped on the movement. The mainsprings listed here are by factory part number for the spring and the measurements for those who have the gauge and skill to measure a spring.

• Waltham Pocket Serial Number Lookup

When in doubt, go to this site and put in your info. At the bottom of your search reply, you will see a link to the 1900 original Waltham ledger page. Click on it and you will see the original Waltham ledger page which they have recorded and is always available to see. I'll send in following message-Updated -When in doubt, go to this site and put in your info. At the bottom of your search reply, you will see a link to the 1900 original Waltham ledger page. Click on it and you will see the original Waltham ledger page which they have recorded and is always available to see. I'll send in following message.

• If you have a Waltham Pocket Watch, and you are interested in looking up the serial number in order to find out more about your watch, you can use the link below. This is provided by the NAWCC. Waltham Serial Number Lookup. You will find this very helpful. Stan Hoffman.Jeweler.Watchmaker.HOROLOGIST.COM.Timebuilder eBay Store.
• Elgin Pocket Watch Serial Numbers – Look Up Table Posted on December 31, 2011 by Elgin Staff 1 Comment This article will help you understand where to look for, and find the two Elgin Pocket Watch Serial Numbers.

The Waltham Watch Company, which was based in Waltham, Mass., produced pocket and wrist watches between 1850 and 1957. Today, Waltham watches remain highly desirable collectible timepieces. Dating a Waltham is an easy task. The watchmaker kept thorough records of its products. Waltham etched a serial number on every watch movement along with its name and trademark. Unlike other watchmakers, Waltham went the extra step by usually identifying the model of the watch on the movement as well. This information can be used to find the year that the watch was made.Use a flat blunt blade to pry open the snap case back of a Waltham wrist watch.

A lip or notch on the case back can be found at the 6 or 12 o’clock position. If there is no lip, carefully wedge the blade into the seam and lift. The case should pop open.Carefully examine the case back of a Waltham pocket watch.

Pocket watch case backs vary in design and require different methods to open. For hinge back and bezel cases, examine the case back with a jeweler’s loupe or the naked eye for two small hinges on the case back.

The hinges are usually at the 6 o’clock position. Pry the case at the opposite end of the case back first with a fingernail. If that doesn’t work use the flat blunt blade. The case should snap open. Hunting cases feature front and back covers.

Press down on the crown and a tiny hatch will release the cover.Use a jeweler’s loupe to examine the movement. Don’t touch the movement with your fingers.

At or near the edge of the movement will be a serial number. Digits in the serial number will range from two to eight depending on the year of production.

For example, 1856-1857 Waltham pocket watches will have a serial number between 4000 and 6000. A 1957 Waltham watch will have a serial number of 35,000,000 or greater, according to oldwatch.com. Record the serial number from the movement.Use the jeweler’s loupe to note the “American Watch Co. Waltham”, “AWCO Waltham” or similar trademark. Note the number of jewels etched on the movement.

Waltham Pocket Serial Number Lookup

Note and record the model name, such as “Riverside” or another model name on the movement.Obtain a Waltham serial number list from the numerous online pocket watch sources or from an experienced watchmaker with an expertise in vintage watch identification and repair. The list will provide the year of production, but not the exact date.