For sale is my 6139-7030 from August 1972 with the very beautiful petrol blue dial. I have included more photos than usual to try and showcase the different looks the three-layer dial provides, depending upon the way light hits it. Excellent case with the original finishing present. The dial and hands are immaculate and all-original. The watch has been serviced by Ashton Tracey (The Seikologist) in Ottawa, ON (The Seikologist) and comes with Ashton's two-year transferrable warranty. The dial pic and movement pic were taken by Ashton during service. The chronograph functions as it should and resets to bang-on 12:00. The watch is keeping excellent time post-service. Here is a link to a video showing the chrono in action: https://imgur.com/a/4xfJGEm This sale is for the watch-head only (strap shown not is included). Included in the sale is an additional NOS Seiko crystal I was able to source as a backup (they are becoming nearly impossible to find). I'm asking $850 CAD (~$650 USD equivalent) shipped to Canada or CONUS (I’m located in Canada). For my European friends, we can discuss shipping costs. No returns. Plenty of references here as well as on r/watches and Watchuseek.