This timepiece is a fascinating and collectible artifact from the early 1970s Japanese Domestic Market (JDM) part of the revolutionary era when Seiko helped define the automatic chronograph. This Seiko Speed-Timer, reference 7017-6020, is technically brilliant because it houses the Caliber 7017A, a Daini Seikosha creation that featured a rare Flyback complication- allowing the chronograph to be reset and instantly restarted with a single pusher press- a feature of true high-end chronographs. The watch exhibits classic 1970s styling with its large, flared tonneau case and a striking black tachymeter bezel framing the deep black dial with those fantastic orange accents.
It provides the essential Day/Date function and showcases the technical ingenuity that made this line of watches so popular among high school and college students in Japan. This is an essential piece for any collector who appreciates mechanical innovation, bold vintage aesthetics, and the thrill of owning a Flyback movement.
