Vintage SEIKO World Time Watches
A growing collection of information related to SEIKO's World Time Watches from 1964 through 1988 and beyond.
Welcome! This website is dedicated to the study, cataloging and attribution of SEIKO's vintage (and neo-vintage) world time watches.
If this is your first visit, the best starting point is likely the TIMELINE for the mechanical world timers, or the TIMELINE for the digital world timers. This will give you a quick chronology of the models in each generation, with links to more detail for each specific model.
To keep things organized, the content is grouped by generation, currently including:
This site is a perpetual work in progress.
Check back regularly for updates and new content.
Popular Articles
General Reference
Model Specific Articles
- The First Mechanical Seiko World Time, The 6217-7000
- The Last Mechanical Seiko World Time, The 6117-6400 and 6117-6409
- The First Digital Seiko World Time, The M158-5000 and M158-5009
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):
- WristSushi.com - Vintage Seiko World Time - Collectors / Owners
- TheWatchSite.com - Vintage Seiko World Time - Collectors / Owners
- WatchUSeek.com - Vintage Seiko World Time - Collectors / Owners
And separately, I have started these threads for the digital watches that followed:
- WristSushi.com - Seiko World Time - Vintage DIGITAL Models
- TheWatchSite.com - Vintage Digital / LCD - Seiko World Times - Collectors & Owners thread
- WatchUSeek.com - Vintage Digital / LCD - Seiko World Times - Collectors & Owners thread
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 Atlas
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