I am putting up my 1976 SEIKO 6139-6005 for sale for $650, I bought this watch from Hub City Vintage in March 2019 and the watch is running very well. I am trying to consolidate my collection a bit and I am just not wearing the watch enough to justify keeping it. I am semi interested in trading the watch but it would have to be in tandem with my Nomos Club 751 I am also putting up for sale. CONUS only and I have references in the feedback forum. Please feel free to message with any questions.