The watch is very similar in style and size to the W10 made by Hamilton from and subsequently by CWC from and it shares all of the attributes required to adhere to the strict standards for military use. Potter Warren Manufacturing Co. Pry the case at the opposite end of the case back first with a fingernail. It is still possible to purchase modern quartz watches that bear the Waltham name, but these watches are unrelated to the "genuine" American Waltham Watch Company. These dates are often off my several years. The information below was gathered and amalgamated from various sources on the Internet. Never use the serial number from the case or any other part.

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I Forgot My Password. Keep track of your watches, notes, service records, upload photos, and use our value guide! 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:. Login Email. Don't have an account yet? Join for FREE Keep track of your watches, notes, service records, upload photos, and use our value guide! Join Now. My Collection Login Join for Free. Toggle navigation. 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: Always input the serial number from the pocket watch movement the "mechanism" of the watch. Never use the serial number from the case or any other part.

Waltham pocket watches walthaj perhaps the easiest timepieces to date. The Walthaj Waltham Watch Company click trace its roots to Each timepiece has been engraved with a serial number sincestarting with number The serial number will pinpoint the year of manufacture but not the exact date.

Serial numbers to date the watch are only found on movements. The number on the case provides no information. Place the screw-down Waltham pocket watch face down in the palm of your hand. Locate the seam between the case back and case. Place your fingertips around the edge of the case back. Rotate the dating a waltham watch movement back counterclockwise until the case back is free from the case.

Use a jar lid grip remover for stubborn screw-down case backs. Never force a case back. If the case back remains immobile, take the timepiece to an expert in pocket watch watham for removal. Press the crown down on a hunting case Waltham pocket watch, which is a different model from the screw-down version. The depressed crown will release a latch that opens the front cover over the crystal. The depressed crown will also release case back cover.

Once the latch is released, open the back cover by placing your fingernail or blunt blade between the back cover and case to pry it open. On the other side of the movement is a series of numbers ranging from two to eight digits. Record the number and compare it to the Waltham pocket watch serial number list posted on numerous online pocket watch sites. Expert pocket watch repairpersons and watchmakers also carry the list. If, for example, your Waltham pocket watch is engraved with a serial number between 10, and 11, watchh was manufactured in A Waltham pocket watch with a serial number 35, or greater was manufactured in Reputable watch sellers will allow buyers to examine the movements and open the case back for inspection.

When shopping for a Waltham pocket watch keep a copy of the serial number list for reference. Avoid touching the movement with your fingers. Body oils and dirt dating a waltham watch movement contaminate the movement. Rob Wagner is a journalist with over 35 years experience reporting and editing for newspapers and magazines. His experience ranges from legal senior online dating reporting to covering the Middle East.

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