Grand Seiko Spring Drive U.F.A.

Grand Seiko Evolution 9 Spring Drive U.F.A. 9RB2 – Absolute Precision Inspired by Ice Forests

Grand Seiko Spring Drive U.F.A.: The Brand’s Most Accurate Mechanical Watch

The Grand Seiko Evolution 9 Spring Drive U.F.A. sets a new benchmark in Japanese haute horology thanks to the revolutionary Calibre 9RB2, a movement that redefines precision. With an astonishing accuracy of ±20 seconds per year, this timepiece introduces the new U.F.A. (Ultra Fine Accuracy) designation, making it the most accurate automatic mainspring-powered movement ever developed by Grand Seiko.

The result of decades of research and continuous evolution of the Spring Drive technology, this model seamlessly combines the heritage of traditional mechanical watchmaking with cutting-edge electronic innovation, delivering exceptionally stable, smooth, and highly accurate performance.

A Dial Inspired by the Ice Forests of Shinshu

The dial of this Grand Seiko draws inspiration from the breathtaking ice forests of Kirigamine, located near the Shinshu Watch Studio, where every Grand Seiko Spring Drive watch is crafted.

Its intricate texture captures the beauty of frost-covered trees during the Japanese winter, while the elegant silver-blue finish evokes the crisp, clear air of snow-covered landscapes. A beautifully heat-blued seconds hand completes the design, adding refined contrast and outstanding legibility.

Spring Drive Calibre 9RB2 U.F.A.: Innovation in the Pursuit of Precision

The new Spring Drive Calibre 9RB2 represents the pinnacle of Grand Seiko’s technological innovation.

Its extraordinary annual accuracy is achieved through a quartz oscillator aged over a three-month period, a newly designed integrated circuit, and an advanced temperature compensation system individually programmed for each movement.

Additionally, both the quartz oscillator and temperature sensor are vacuum-sealed to protect them from humidity, static electricity, light, and temperature fluctuations, ensuring exceptional long-term stability.

For the first time in a Spring Drive movement, the calibre also features a regulation switch, allowing Grand Seiko’s official service centers to fine-tune the movement during maintenance and preserve its remarkable precision over the years.

Compact 37 mm Case for Exceptional Comfort

Thanks to the compact architecture of the new movement, this Grand Seiko features an elegant 37 mm case, making it the smallest Spring Drive model in the 9R Series to date.

Its refined proportions make it particularly comfortable for smaller wrists or for collectors seeking a perfectly balanced watch without compromising the signature performance of the Evolution 9 Collection.

The bracelet is equipped with a newly developed three-step micro-adjust clasp, allowing tool-free adjustments in 2 mm increments for enhanced everyday comfort.

A Movement as Beautiful as It Is Precise

The sapphire crystal case back reveals the exceptional craftsmanship of the Calibre 9RB2.

The movement bridges feature delicate textures inspired by the frost-covered forests of Shinshu, while mirror-polished surfaces and meticulously finished details embody Grand Seiko’s distinctive Japanese aesthetic—defined by understated elegance and a profound appreciation for natural beauty.

Every component reflects the artisanal expertise with which each Grand Seiko Spring Drive timepiece is assembled.

Buy the Grand Seiko Spring Drive U.F.A.

The Grand Seiko Evolution 9 Spring Drive U.F.A. represents the culmination of more than six decades of relentless pursuit of absolute precision. An extraordinary timepiece that combines technological innovation, Japanese craftsmanship, and nature-inspired design to create one of the most advanced and exclusive luxury watches available today.

An exceptional choice for collectors and fine watch enthusiasts seeking a timepiece that perfectly balances tradition, innovation, and unparalleled accuracy.

Reference: SLGB003G

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