Seiko “Winding Mark” 11A First AutomaticModel: Seiko Winding Mark 11A First Automatic Ref. 14015 Year: October 1956 Features: The Importance. One of the 14 most important Seikos ever made according to Seiko. In 2021, Seiko published a revised list of their most significant releases. The 11A Winding Mark is hard to argue with, as it was the first automatic watch in Japan. The Winding Mark. Despite the excitement surrounding the launch of their first automatic, Seiko worried that wearers