TIME ZONE
Grand
Seiko
S Now, Grand Seiko introduces the Spring Drive Caliber 9RB2, earning the new U.F.A. designation,“Ultra Fine Accuracy.” With an astonishing ±20 seconds per year, it stands as the most precise mainspring-powered wristwatch ever created. The compact 37 mm case makes these the smallest 9R series watches to date, offering a refined, ergonomic fit. Inspired by the frost-covered trees of the Kirigamine Highlands, the SLGB003 features a textured pale blue dial that reflects nature’s quiet winter beauty. A tempered blue seconds hand evokes the crystalline clarity of a frozen landscape. As part of the Evolution
Since its founding, Grand Seiko has pursued the highest standards of watchmaking, with a relentless focus on accuracy. In 1969, it introduced the V.F.A. (Very Fine Adjusted), a mechanical watch adjusted to an extraordinary monthly accuracy of ±1 minute. In the late 1970s, the brand began developing Spring Drive, a movement that combines the traditional power of a mainspring with cutting-edge electronic regulation. This vision became reality in 2004 with the debut of the Spring Drive Caliber 9R65, offering ±15 seconds per month and a 72-hour power reserve.
9 Collection, this model incorporates broader hands, grooved indexes, and Zaratsu-polished surfaces for exceptional legibility and finish. The 37 mm case, just 11.4 mm thick, is paired with a new bracelet featuring a three-step micro-adjustment clasp for tool-free resizing. Inside, the automatic Caliber 9RB2 runs with 34 jewels, a 72-hour power reserve, and a vacuum-sealed, aged quartz oscillator paired with a thermo-compensating IC. A newly introduced regulation switch allows fine adjustments during servicing, ensuring sustained precision for years to come.
MICHAEL B. JORDAN
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