How to Tell When a Seiko Was Manufactured

Written by chyrene pendleton
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How to Tell When a Seiko Was Manufactured
Calculate the Seiko production date when bargaining for a good watch price. (time image by Bradlee Mauer from Fotolia.com)

As of October 2010, Seiko launched the Grand Seiko in approximately 20 markets around the world. Representing the best of Seiko, in 1960 Seiko launched the first Grand Seiko, a luxury watch brand made for men, which continues to feature a broad range of technologies. You might be curious to learn when Seiko manufactured your watch, especially if you received one as a gift or if you own a very old Seiko watch. Calculating the manufacturing date can also help you if you want to sell your Seiko watch or if you want to get a true bargain when buying one.

Skill level:
Easy

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Instructions

  1. 1

    Locate the serial number engraved on the back of your watch case, under the name "SEIKO." You will also find the model number and the movement number engraved on the back. The movement number represents the classification number of the working parts of your watch.

  2. 2

    Interpret the first digit of the serial number as the manufacturing year. You would need to know the nearest decade to know the exact year. For instance, if "268451" represents the serial number for your Seiko watch, and you know the nearest decade Seiko made your watch was 1990, the first digit would represent the year 1992.

  3. 3

    Translate the second digit of the serial number as the month Seiko produced your watch. This digit could be a number or a letter. For example, for the months of January through September, the second digit would be 1 through 9. The second digit would be the letters O, N and D, for the months of October, November and December. For the serial number "268451," your Seiko watch was manufactured in June 1992.

Tips and warnings

  • Contact Seiko customer service at 201-529-3316, Monday through Friday from 9 a.m. to 5 p.m. Eastern time to get the decade information for your Seiko watch, or to confirm your Seiko manufacturing date calculation.

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