Surrounding the new Grand Seiko Studio Shizukuishi in northern Japan are beautiful white birch tree forests. Noted for its distinct white coloration and texture, the bark of these trees inspires the latest in Grand Seiko's Evolution 9 Collection, SLGH005.
Evolution 9 is the name of Grand Seiko's new design language first introduced with reference SLGH002 in 2020. With its complex faceted case; large hands and prominent markers; Zaratsu-polished, distortion-free finish; and highly ergonomic proportions, Evolution 9 will be an important part of Grand Seiko's catalog for years to come.
Boasting a distinct vertical texture, the white dial captures the serene mood of the white birch tree forest. Contrasting against the dial texture are highly legible markers and hands, which include a striking heat-blued second hand.
First presented in 2020, caliber 9SA5 was developed from the ground up after 9 years of development, the endeavor led by movement designer Hisashi Fujieda. 9SA5 is a 10-beat movement boasting 80 hours of power reserve and a precision rate of +5 to -3 seconds a day. It incorporates three important developments: Grand Seiko's new Dual Impulse Escapement, free-spring balance, and horizontal gear train. Deploying all the skills and experience gained over the past six decades, Grand Seiko achieved in creating what is beyond a doubt the finest mechanical caliber in its repertoire.
Crafted in the Evolution 9 Style, the SLGH005 embodies Grand Seiko's core ideals of beauty, legibility, and comfort. Finished in a crisp, serene silver, the dial of the SLGH005 depicts the white birch forests that grow in profusion near the Grand Seiko Studio Shizukuishi. The case combines distortion-free Zaratsu polishing with subtle hairline finishing for a soft, refined glow, while bold, grooved indexes and substantial hands ensure clear, effortless readability.
Inspired by the majestic white birch forests of Iwate Prefecture, home to the Grand Seiko Studio Shizukuishi, this iconic dial showcases the celebrated White Birch pattern, capturing the depth, texture, and vitality of Japan’s natural landscape. The silvery-white dial reflects the beauty of towering birch trees, while the tempered blue seconds hand adds a striking contrast, animated by Grand Seiko’s precision high-beat mechanical movement.
The case features delicate hairline-finished surfaces on the top and sides, seamlessly framing the mirror-finished areas. The bezel also blends both finishes. Zaratsu polishing ensures distortion-free surfaces, creating bold contrasts of deep shadows and sharp reflections.
The exceptional Caliber 9SA5 is a high-beat movement operating at 36,000 vibrations per hour with an impressive 80-hour power reserve. Its Dual Impulse Escapement and twin-barrel design enhance efficiency, while the finely finished surfaces echo the rippling waves of the Shizukuishi River, seamlessly blending technical mastery with artistic elegance.
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