Lately I've been looking into the early days of quartz, when quartz was considered the height of watchmaking and mechanical prices and demand dropped. It's the flip side of what we currently see, with quartz watches from China going for a dollar on ebay and most of 'haute horologie' consists of mechanicals.
In particular I've been interested in Seiko, having something of an affection for the brand and many of the early Seiko quartz watches being among the most impressive.
Starting of course with the Seiko Astron...
The Astron line having now been revived as watches which are also quite technologically advanced for their time...
Moving forward some, we have the QT/QR/QZ line of quartz, ranked in descending order of cost.
All a very similar aesthetic, which continued going forward. Next Seiko Grand Quartz/King Quartz/Lord Quartz, again in that order.
Note the different symbol on this Grand Quartz, indicating it's a Twin Quartz. The Grand Quartz was, of course, the precursor to the Grand Seiko Quartz models.
Finally the Superior, apparently most coveted by collectors today because it was the absolute top dog in the pecking order.
Unfortunately I don't have much here beyond pictures and the relative positioning of the models in Seiko's line-up... would love it if anyone can share some more. Otherwise I'll see if I do some more research into these and try and add more details to the thread, at some stage. Putting this here rather than in the HAQ forum as my interest in these watches isn't just in their accuracy. I've actually ordered one of these vintages myself, I wanted something like this in my collection, this King Quartz:
Finally, a shout-out to member Wibbs, whose posts first got me looking into this era.