Seiko was the watchmaker who makes the first quartz watch, the Quartz-Astron what was sold first end 1969.
Seiko made the first lcd quartz watch too (only the DSM/Optel watches were earlier but were difficult to read)
The first lcd watch was the 06LC 0614-5000 sold in Japan only. Sales started in Tokyo on Friday 5 October 1973.
My 0614-5000 was sold on Friday 12 October 1973 according to the Seiko guarantee what was still with the watch when I bought it.
But the productiondate of this watch is the most interesting: NOVEMBER 1972.
Here is the photo: