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2. 3. 2025
Grand Seiko Evolution 9 Collection Hi-Beat 36000 80 Hours Limited Edition SLGH027
A new mechanical creation in the Evolution 9 Style captures the majesty of Mt. Iwate with a distinctive new dial.
Grand Seiko SLGH027

The SLGH027 makes a striking new addition to the Evolution 9 Collection. This limited-edition timepiece captures the grandeur of Mt. Iwate with a distinctive, textured dial, celebrating both the brand’s rich heritage and its continued pursuit of innovation. Crafted at the Grand Seiko Studio Shizukuishi in northern Japan, the SLGH027 pays tribute to the breathtaking mountainscape that has long inspired Grand Seiko’s renowned artisans.

A defining symbol of Grand Seiko’s mechanical watchmaking legacy, Mt. Iwate serves as the muse for this creation, blending cutting-edge technology with time-honored craftsmanship. At its heart is a textured light-blue dial, a refined interpretation of the Mt. Iwate pattern first introduced in 2006. This novel rendition evokes the view of Mt. Iwate from above, with its light-blue hue reflecting the clarity of the air and water surrounding the peak.

Both the case and bracelet are crafted from Ever-Brilliant Steel, a stainless-steel alloy with superior corrosion resistance compared to steel commonly used in luxury watchmaking. This advanced alloy enhances the hairline-finished components, allowing them to shine brighter and whiter, perfectly complementing the light-blue dial. Ever-Brilliant Steel ensures the watch is as durable as it is beautiful, making it an ideal companion for years to come.

Designed in the Evolution 9 Style, the SLGH027 advances Grand Seiko’s ideals of beauty, legibility, and comfort. The case features a refined combination of Zaratsu polishing – creating a distortion-free mirror finish – and delicate hairline finishes for a soft glow. Bold, grooved indexes and powerful hands ensure exceptional legibility.

Measuring 40.0mm in diameter and 11.7mm in thickness, the watch has a low center of gravity and is paired with a perfectly proportioned bracelet to provide a secure, comfortable fit. The case is water-resistant to 10 bar and offers magnetic resistance of 4,800 A/m. It features a box-shaped sapphire crystal with an anti-reflective coating, a see-through screw case back, and a three-fold clasp accented with rose gold accents.

At its core is the exceptional Caliber 9SA5, 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 movement’s finishing echoes the rippling waves of the nearby Shizukuishi River, merging technical excellence with artistic flair.

The SLGH027 will be available as a limited edition of 1,200 pieces offered exclusively through Grand Seiko Boutiques and select retail partners starting in May 2025.

Grand Seiko SLGH027
Hi-Beat 36000 80 Hours
SLGH027
$10,500
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