Dating pierce watch case
While I'm not an expert, I believe the information on this page is correct. Please send suggestions and corrections to the webmaster. It is very important to not use the serial number on the case because that is completely unrelated to the movement serial number.Table of Contents How to Open a Watch Case Why the Movement and Case Serial Numbers Are Unrelated Are Case Serial Numbers Useful For Anything? "Jeweler Marks" Accuracy of the Estimates of When Watches Were Made The Better Way to Determine the Date Serial Number Data Table While opening a watch isn't rocket science, a watch can be damaged if you try to open it incorrectly. If you really aren't sure what to do, take it to one of your local jewelers and ask them to show you how to open it.Earlier wrist watches are often similar to pocket watches.The reason that the movement and case serial numbers are unrelated is because up until the 1920's, almost all American watches were sold separately from the watch cases. The Illinois Watch Company produced watches under contract for several different brands, including Burlington Watch Company (Chicago, Illinois) which operated primarily as a mail-order business, and Santa Fe Watch Company (Topeka, Kansas).
For example, H632161 would be converted into 47,632,161 and N7193 would be converted into 48,007,193.After the watch was finished, it might sit in a wholesaler's warehouse or a jewelry shop for months or years.About the best you can say that the watch was probably not produced or sold as "new" before the date listed.Sometimes these scratches would be some form of date code, or maybe just the initials of the watch maker, often just an invoice or repair number.There was no standard across the industry and individual watchmakers may change codes over the years.
The table below with the serial numbers and years has be compiled from many sources and I believe it to be reasonably accurate, However, no table like this can be completely accurate because Elgin didn't produce watches in sequential order.