Dating vintage rotary watches
This page contains INSTRUCTIONS for using the serial number look-up tables that are found on many of our watch company history pages.
In Europe the hallmarking of precious metal objects was, and still is, a legally required process.
It involves testing and the fineness of the metal and then stamping it with control marks that show the results.
Many watch companies made hundreds of thousands of watches, and some companies made millions of watches!
It would be impractical to list the individual serial numbers of EVERY watch made... Our serial number tables list RANGES of serial numbers.
For our International customers please email us and we can give you a competitive postal quote which is also fully trackable.
If you would prefer a different leather strap colour than shown we can change it for you!
If you want to get a book about English hallmarking, Bradbury's Book of Hallmarks published by the Sheffield Assay Office is a long established reference.
Make sure that you get a 2014 or later edition, because only those contain correct information about British import hallmarks applied to watch cases.
Hallmarking is carried out by an organisation independent of the manufacturer of the item.
In addition to the fineness, hallmarks can show where and when an item was hallmarked, and who submitted it.
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