18/10/2026
1964: The moment Japan defined modern timekeeping.🇯🇵⏱️
When Tokyo hosted the 1964 Olympic Games, Seiko stepped onto the global stage as the official timekeeper. To celebrate this historic milestone, they released the Crown Chronograph (Ref. 5717-8990)—Japan’s very first wristwatch chronograph.
Driven by a unique monopusher movement, it allowed athletes and officials to start, stop, and reset timing with a single push, using the rotating bezel to track elapsed minutes.
A foundational pillar in horological history and a true icon of 1960s Japanese design.
# vintagewatch