Disclaimer: My version of saving may not be your version of saving, peace.
(before and after below).
This manual wind Seiko started a new life as an under $20 shipped purchase off of ebay, it was a wreck. These silver planted dial Seiko's are easy to find usually with poor dials and cheap. I believe this one was built in 1969 and has a stainless case and the 6602b movement.
The sellers listed this one as running but the sellers version of running may not be my version of running, peace.
After a good scrub and oil the movement ran like crap! low amplitude, erratic and with 3~4 milliseconds of beat error. After much fussing it came down to a bad balance cock jewel, I found a replacement from of all things a Caravelle pocket watch parts machine, I dropped it in and the movement now runs beautifully.
I made a new iconography dial for it (it's an acquired taste) and put on a second hand off of another parts watch. These late 60's ~ late 70's 6602b movement Seiko's are a nice size at around 36mm are thin, light and wear very nicely.