1973 Seiko 5 Actus 6106-7690 Deadstock

Serviced (July 2022) unused with tags and manual, 1973 Seiko 5 Actus Second Setting, 25 jewels automatic watch.
Model number 6106-7690

Case size 36.6mm x 40.5mm x 12 6
Lug width 18mm

Deadstock from recently closed local watch shop.

Watch has never been worn and the case and 3 way cut glass are like new.

For some reason there is a tiny black line on the dial above w in jewels. I don't know what it is nor how it got there.

Since, it's been sitting on display for many decades it collected dust and oils have dried up so the service was necessary.
Now the watch works like new.