Vintage SEIKO World Time Watches

A growing collection of information related to SEIKO's World Time Watches from 1964 through 1988 and beyond.

This website is dedicated to the study, cataloging and attribution of vintage SEIKO's world time watches. To keep things organized, the content is grouped by generation, currently including:


  • The 1st Generation - Mechanical Watches from 1964 through 1976
    CONTENT STATUS: Available Now
  • The 2nd Generation - Digital Watches from 1977 through 1988
    STATUS: Available Now
  • The 3rd Generation - Quartz Analog Watches from 1989 through 1994
    CONTENT STATUS: Some time in the foreseeable future

This site is a work in progress. Check back regularly for updates and new content. New content is still being developed for both generations covered on this website, with several new articles, guides and tools expected in coming weeks and months.


Popular Articles


General Reference
Model Specific Articles
Authenticating / Confirming Originality

1st Generation Mechanical Watches

Tools & Summary Resources

Production Timeline

Mechanical Generation

This is a top-line summary of the different model releases in the mechanical watches generation from 1964 through 1976. If you are looking for a quick overview of the mechanical generation, this is a good place to start.

Sales Image Study

Mechanical Generation

Ever wonder how many watches of a specific model were produced? Curious if the watch you are buying or selling is original? Do you know how common the black dial versions were with each model?

Image Data Explorer

Mechanical Generation

Want to do your own analysis? Here's the data. Filter, sort and view the data in detail or as thumbnails.

2nd Generation Digital Watches

Tools & Summary Resources

Production Timeline

Digital Generation

This is a top-line summary of the different model releases in the digital watches generation from 1977 through 1988. If you are looking for a quick overview of the digital generation, this is a good place to start.

Sales Image Study

Digital Generation

Ever wonder how many watches of a specific model were produced? Curious if the watch you are buying or selling is original? Do you know how common the black dial versions were with each model?

Image Data Explorer

Digital Generation

Want to do your own analysis? Here's the data. Filter, sort and view the data in detail or as thumbnails.

Contact and more info


If you have helpful information to share, see anything incorrect, or otherwise have comments, please reach out. I make every attempt to reply quickly and insure the accuracy of the information and data presented here.

Right now, you can post replies (about the mechanical watches) on any of these 3 threads (or PM me):

And separately, I have started these threads for the digital watches that followed:

I am just another vintage watch enthusiast that knows a thing or two about old SEIKO world time watches... and writing websites.

  • If you have a related business and would like to advertise here, please reach out.
  • If you are in the market for a vintage SEIKO World Time and would like my feedback, please reach out.
  • If you find this information helpful, please consider making a donation to help keep it going.


Related Articles


Old Ad Scans: Seiko World Time 6117-601X

A small collection of ad and catalog scans of the SEIKO World Time 6117-601X

The Seiko World Time 6117-601X

All about the 3rd series world time watch from SEIKO, produced from 1968 through 1969

Old Ad Scans: Seiko World Time 6117-640X

A small collection of ad and catalog scans of the SEIKO World Time 6117-640X

The Seiko World Time 6117-6409 in Gold

All about the gold/gilt world time watch from SEIKO, produced in 1972

Authenticating The Seiko World Time 6117-640X

Tips on confirming the originality of your Seiko World Time 6117-640X

The Seiko World Time 6117-640X

All about the 4th series world time watch from SEIKO, produced from 1969 through 1976

The Seiko World Time 6217-7000 - 1967

All about the reproduction of the first series world time watch from SEIKO in 1967

The Seiko World Time 6217-7000 - The Dolphin

All about the Dolphin World Time watch from SEIKO, December 1964

Authenticating The Seiko World Time 6217-7000

Tips on confirming the originality of your Seiko World Time 6217-7000

The Seiko World Time 6217-7000

All about the first series world time watch from SEIKO in 1964

The Seiko World Time 6217-7010 - Asian Games

All about the Asian Games World Time watch from SEIKO, August 1966

The Seiko World Time 6217-7010 - Standard Edition

All about the 2nd Series World Time watch from SEIKO in 1967

Old Ad Scans: Seiko World Time 6217-7000

A small collection of ad and catalog scans of the SEIKO World Time 6217-7000

Counterfeits and Copies of The Seiko A239

As the saying goes, imitation is the highest form of flattery. And the SEIKO A239 had quite a few admirers.

The Seiko World Time A239-50XX - The WOPR

All about the 3rd series of digital LCD world time watch from SEIKO, produced in 1979

Old Ad Scans: Seiko World Time A239-50XX

A small collection of ad and catalog scans of the SEIKO World Time A239-50XX

The Seiko World Time A358-500X - The Alarm

All about the 2nd series of digital LCD world time watch from SEIKO, produced in 1979

The Seiko World Time A708-5000 - The TWA

All about the 4th series of digital LCD world time watch from SEIKO, produced from 1984 through 1988

The Seiko World Time A718-5010 - The Frankenstein

All about the A718-5010 digital LCD world time watch from SEIKO, produced in 1984

The Seiko World Time A718-5030 - The John Cleese

All about the A718-5030 digital LCD world time watch from SEIKO, produced in 1984

Reference Cities - Changes over the Years

A history of changes to the Cities Dial Frames on SEIKO World Time digital watches from 1977 through 1988

Reference Cities - Changes over the Years

A history of changes to the Cities Bezel on SEIKO World Time mechanical watches from 1964 through 1976

The Date Wheel - Changes over the Years

A history of changes to the Date Wheels on SEIKO World Time mechanical watches from 1964 through 1976

The Dial - Changes over the Years

A history of changes to the Dials on SEIKO World Time mechanical watches from 1964 through 1976

Counterfeits and Copies of The Seiko M158 PAN AM

As the saying goes, imitation is the highest form of flattery. And the SEIKO M158 had quite a few admirers.

The Seiko World Time M158-500X - PAN AM

All about the 1st series of digital LCD world time watch from SEIKO, produced in 1977

Old Ad Scans: Seiko World Time M158-500X

A small collection of ad and catalog scans of the SEIKO World Time M158-500X

Authenticating The Seiko World Time M158-500X

Tips on confirming the originality of your Seiko World Time M158-5000 and M158-5009

Decoding Seiko Part Numbers, Model and Serial No

Deciphering Seiko Model and Part Number Codes