Glad to see the vintage Seiko 6139s get a mention on Hodinkee. The blue dial really pops in sunlight!
Sad story, A number of yesrs ago, I owned a nice Omega Constellation with the same "pie-pan" dial as yours. A brother-in-law was bemoaning the fact he didn't have a watch. I gave him the Omega! A year or two later, he left the watch in his car, in plain sight, and was playing baseball! Guess what! The watch was worth more than the ratty Mazda RX 7 he was driving! Someone, somewhere, is likely enjoying this watch today!