A Mechanical GMT Model Commemorating the 20th Anniversary of Caliber 9S | GRAND SEIKO

GRAND SEIKO | Grand Seiko

Equipped with a High-Accuracy Caliber
A Mechanical GMT Model in Grand Seiko Blue

Introducing the "SBGJ229," a mechanical GMT model featuring Grand Seiko Blue ceramic, commemorating the 20th anniversary of Caliber 9S. Limited to 350 pieces worldwide, it will be available at Grand Seiko Master Shops across Japan.

Text by OZAKI Sayaka

Expressing the Brand's Worldview with the New Grand Seiko Blue

Since its inception in 1960, Grand Seiko has pursued the essence of watchmaking—accuracy, legibility, and beauty—striving for the pinnacle of practical timepieces and continuously evolving. The brand has earned high acclaim for its superior quality and sophisticated design, crafted by one of the world's few true manufacture houses.

This model, released to celebrate the 20th anniversary of Caliber 9S, features a dial in the new Grand Seiko Blue, matching the ceramic components. The blue theme extends to the bar indices and GMT hand, further emphasizing the brand's unique aesthetic.

The bracelet combines scratch-resistant ceramic with lightweight Bright Titanium for exceptional comfort. The inner case, made of Bright Titanium, ensures excellent water resistance.

Furthermore, the dial is embossed with a radial geometric pattern of "GS" and "9S" lettering, creating a special feel befitting an anniversary model.

The movement is Caliber 9S86, a high-accuracy movement that has passed the "Grand Seiko Special Standard" certification, achieving an average daily rate of +4 to -2 seconds. As proof, the dial features a "SPECIAL" notation at 6 o'clock, and the blue titanium oscillating weight visible through the sapphire crystal case back is adorned with a 18K rose gold lion emblem.