Seiko watch movement dating

19 Apr

Step 2: Movement & Model The Seiko movement and model number can be found on the caseback in two sets of 4 digits joined by a dash.The first 4 are the movement calibre number, the second four are the case/model number.Hi Gang, I spent a few hours rewriting my old code for the Seiko Watch Production Date Calculator, and I think it is slightly better than the original.You just have to type in your movement number, the serial number, and my program will print out the production month and year.Here is the new link: The list of start years for Seiko movements is in need of updating, so I will need your collective help in bringing the program up to date.

seiko watch movement dating-20seiko watch movement dating-69seiko watch movement dating-80seiko watch movement dating-42

If you don't you could e mail Seiko customer service in (Japan) ,quoting model and serial numbers and they should be able to help,here is their e mail address below Please remember that this is just an approximate guide and can not be used as a 100% accurate outlook as per how old your watch might be.

Usually the case style or the introduction dates of the movement can help to narrow this down though.

General rule for manufacture month/year is to look at 1st digit of serial # to say what year within decade. For month, 1-9 are Jan thru Sep, with 'O' for Oct, 'N' for Nov, and 'D' for Dec.

Also check that the engraving is neat, evenly spaced, aligned and features sharp edges.

Step 3: Movement & Dial Seiko watches feature the movement calibre and dial code printed at the bottom of the dial near the 6 o'clock position.