Found this one today. Seiko A639. New old stock.
Wow, what a beauty!!!
Congratulations, enjoy this great watch. 😜
Thanks a lot. I will enjoy it. 😊
Hi there. Please, is that an A639-5000? You can tell the year of manufacture from the first two numbers of the serial number on back. What are they?
There are many variations, as you will see on the main site that sponsors this forum.
It’s from February 1981.