Grand Seiko 43999

From August 1963, a very early SD-dialed Grand Seiko 43999 “Self-dater”. This was the first Grand Seiko to have both Seiko and Grand Seiko branding on the dial.
#GSWednesday

Oh! I almost forgot to mention that the 43999 is also the only Grand Seiko in history (including both the vintage and modern eras) to have “Made in Japan” written on the dial.