Seiko Creates a One-of-a-Kind “Star Time” Watch for Shohei Ohtani That Tracks Up to One Million Hours
Seiko has unveiled an extraordinary custom wristwatch for baseball superstar Shohei Ohtani, and it is unlike anything in the brand’s regular lineup. Called the Seiko Star Time, the unique timepiece was created specifically for Ohtani and is designed to measure cumulative time up to one million hours, equal to more than 114 years.
The idea behind the watch reportedly began with a simple but deeply personal question from Ohtani: how much time did he have left in his baseball career? Rather than answer with a number or a prediction, Seiko turned the question into a three-year watchmaking project. The result is a one-off creation that blends symbolism, engineering, and Ohtani’s long-standing relationship with the Japanese watchmaker.
Ohtani has been a Seiko brand ambassador in Japan for around ten years, making the Star Time a fitting tribute to both his career and his partnership with the company. Seiko Chairman and CEO Shinji Hattori personally presented the watch to Ohtani on July 3, 2026.
What makes the Seiko Star Time special is its unusual display system. Instead of relying on a conventional dial layout, the watch uses five layered rotating discs. Each disc tracks a different time range: 24 hours, 1,000 hours, 10,000 hours, 100,000 hours, and 1,000,000 hours. The innermost disc also functions as the current time display.
Each of the five discs features a diamond, adding a visual highlight to the complex layered design. The discs rotate so slowly that their movement cannot be seen in real time. This is where the name “Star Time” comes from, as the motion is meant to resemble the gradual movement of stars across the night sky, something that becomes noticeable only over long periods.
According to Seiko, this is the only wristwatch in the world capable of displaying cumulative time up to one million hours using this kind of five-disc system. While the basic concept is easy to understand, fitting the mechanism into a wearable watch required a highly specialized construction.
The case is made from Seiko’s High-Intensity Titanium, a lightweight and durable material often used by the brand for premium sports and professional watches. The case measures 41.8 mm across and 17.4 mm thick. The thickness comes from the need to house the five stacked rotating disc mechanisms inside a wristwatch-sized case.
A box-shaped sapphire crystal protects the dial, complete with an inner anti-reflective coating for improved visibility. The watch also offers 10-bar water resistance, making it more than just a display piece. To complete the custom build, Seiko fitted the Star Time with a silicone strap made specifically to match Ohtani’s wrist measurements.
Unfortunately for collectors, the Seiko Star Time is not available for purchase. It was created as a one-of-a-kind watch for Shohei Ohtani, and Seiko has not announced any plans to produce a commercial version.
Still, the watch could inspire future Seiko designs. Its combination of sports heritage, astronomical symbolism, titanium construction, and unconventional time display gives it the kind of appeal that watch fans remember. Even if the Star Time remains a single-piece creation, it stands out as one of Seiko’s most fascinating custom projects and a meaningful tribute to one of baseball’s most remarkable athletes.
