There is extensive information about different makes of watch, along with nice histories about the companies themselves.
(ISBN 978-0982948774 for the 2018 edition) for more information about your watch. You might also try looking in the book "The Complete Price Guide to Watches" by Richard M. These tables are only accurate for the movement serial numbers.
Please note there is a difference between the number marked on the movement and the one marked on the case. Remove or open the back cover from your watch and look for a number engraved into the movement this is the serial number for your watch, and by using it, you can find the closest years it was made on these tables. This index value aims to quantify relative rarity within a watch company's production, independent of the absolute rarity that modern collectors often discuss.Īll rarity index values are calculated within the context of grade, size, model, and configuration classification and then normalized using standard deviation.Please use the following tables to help determine the approximate age of your watch. The PWDB Relative Rarity Index is a statistical metric representing the rarity of a particular grade within the context of the total estimated serialized production from a single company.
This index can quickly identify which movements represent common or uncommon production using real-time statistical methods to analyze relative rarity.Įxample of the PWDB Relative Rarity Index for the Elgin Grade 91Now displayed on most serial number lookups on the Pocket Watch Database
The PWDB Relative Rarity Index aims to provide a quantified metric to convey how rare a particular movement is within the context of total serialized production from the factory. Elgin Grade 91 Movement, 1.11 PWDB Relative Rarity Index
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