At the moment, itll consistently run or about three seconds when you give it a hearty shake; sometimes, though, you can get about 10 seconds out of it. The minute counter does turn over and all chrono hands reset to zero, albeit a bit listlessly. The day and date quickset properly and turn over at…
Seiko 6139-6002 Pogue, Kanji day wheel, for parts/repair (March 1975)
This is a later example (no 70M or Resist text on the dial, Resist horseshoe caseback). With the caseback off, the winding weight is quite corroded and theres a touch of rust to the visible portions of the movement, which I did not remove from the case (theres mild rust to the movement ring, too,…