Up for sale is my birth year Seiko 6139-6012. :)

Watch dates to 1977. It is as nice an example as I have seen. Original hands with matching patina, bracelet, etc... The chrono runs great, with all hands crisply resetting to zero. Day, date works great. All pushers are crisp. Watch is very accurate (but hard to tell exactly without running seconds). I would estimate +/- 10-15 a day last time I eyeballed it to an atomic clock. Original ladder bracelet in great condition.

All in all, a great example of a 6139-6012 day, date auto chrono. Asking $365 Net to me, O.B.R.O. ConUS only. Lots of feedback here and on eBay as SEARZ77. Enjoy: