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After understanding the name of the manufacturer, you may be interested in the age of the watch (for watch collectors and the like, we encourage you to purchase a guide to watches).
If you already have a book, this information can be obtained by using the serial number inscribed on the back movement plate and referring to the production table in your guide.
It is often hard to establish the exact age, but this method will put you within a two or three-year period of the date of the manufacturer.
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