I'm not new to Seiko, as I owned many when my pockets were young and shallow, but I am only recently enjoying the Seiko space connection: The "Pogue" 6139 6005 American market watch worn by Bill Pogue on Skylab 4. The exact variant he wore sported "water 70m resist" on the left side of the dial and only "SEIKO Automatic" beneath noon. Of course, the dial was gold. That variation seems to have been produced between Feb 1971 and Apr 1972 only and only sold in US markets. He bought his at a BX on a USAF installation. Those not paying attention may not have noticed the prices during the last few years, but what used to be maybe 500 usd for a nice example just a few years ago can now bring 2500 for a similar watch. There is scarcity and high demand. I believe within a few short years similar condition "true Pogues" will match the prices of early 70s Speedmaster Pros. (4 to 7K currently, give or take) You might say this watch has the right stuff to blast off in value.