Free and simple Seiko serial number decoder and movement date finder. Enter your Seiko serial number and find when the watch was made, its value and links to manuals and info.

The page includes a calculator along with instructions and example images to help you find the movement caliber, case code and serial number on the back of your watch.

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 …

Sep 23, 2025 · Seiko watches serial number with our guide. Learn how to decode the 6-7 digit code to find your watch’s manufacture date, verify authenticity

A complete guide to Seiko watches serial numbers and how to use the Seiko serial number to date the production year of your Seiko.

Jul 7, 2025 · Welcome to Serial-Number-Decoder.co.uk, a collection of serial number date decoders and tools. This project started back in 2012 when I wrote a basic tool to cross reference the serial …

Apr 28, 2024 · You just enter your watch serial number and caliber number and the date will be calculated. A comprehensive date calculator can be found here - SEIKO - Serial Number to …

Definition: This calculator determines the production date of Seiko watches from their serial numbers. Purpose: It helps watch collectors and enthusiasts verify the age and authenticity of their Seiko …

Jul 30, 2025 · A modern web application that helps you decode Seiko watch serial numbers to determine their manufacturing date and other details. The app features a beautiful Japanese snowflake-themed …

Try out the free easy to use seiko serial number and movement date finder on your vintage seiko watch. Enter your seiko serial number and find out when your watch was made as well as get links to …