mpg13
610
https://www.seikoserviceusa.com/
I had one of those a long time ago. Cool watch. Best, Martin
About 30 years old
By: cazalea : December 11th, 2018-15:00
You can go to a couple sites ( Here is one ) and type in your numbers (shown here) and it will calculate a date. Since your case has a scale for marking the replacement of the battery, it helps us a little. The first digit of the serial number indicates t...