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LoginClicking on links to a merchant on this site and making a purchase can result in this site earning commission. Affiliate programs and affiliations include the eBay Partner Network and Amazon associates. The Seiko serial number decoder Find the manufacture date of any Seiko watch Seiko watches have a 6 or 7 character serial number on their casebacks. The second character can be a letter but the rest are all numbers. You can use the Seiko serial number in conjunction with the movement number to calculate the year of manufacture. The month and last digit of the Seiko'a date of manufacture is calculated using the serial number and then narrowed down to a decade using my database of Seiko movement manufacture dates. You will be given an eBay link to check the value, useful links such as manuals, etc and for quartz models the battery information. If more than one date is returned then either I lack data for that Seiko movement or it was made for over a decade. For details of my Seiko movements list click here.
This article includes tools to help decode common part numbers to help find generic replacements, interpret model and serial numbers to determine caliber and date of manufacture, and a transcript of SEIKO's manual on case and gasket coding for reference. Enter your gasket code here to decode the size, shape and other qualities. This will help you find a matching after-market gasket equivalent. Locate the part number for the gasket in question and enter it in the decoder above. Be sure to find the original part number. Replacement part numbers are typically also listed, but these do not follow SEIKO's part number scheme and cannot be decoded here.
The watch is provided with a date function and is so designed that the date changes once every 24 hours. Do not set the date between p.
Watch enthusiasts I mean. The thrill of opening the next box or clicking the next link to see if it might be hiding something different. Something special.
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6/27/2024
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