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Grand Seiko

Evolution 9 Spring Drive UFA

SKU: SLGB003
  • $11,40000
  • GRAND SEIKO AUTHORIZED DEALER
  • TOPPER EXTENDED GUARANTEE

An astonishing new bar for Spring Drive accuracy

The pursuit of high accuracy has been the cornerstone of Grand Seiko’s values since its first watch was created in 1960. In the late 1970s, the development of Spring Drive began with an aim to harmoniously blend the traditional energy of a mainspring with state-of-the-art electronic watchmaking advancements. In 2004, Grand Seiko introduced the Spring Drive Caliber 9R65 with a monthly rate of ±15 seconds. 

Today, this legacy of accuracy in watchmaking reaches new heights with the Spring Drive Caliber 9RB2, which receives the new U.F.A. designation, standing for “Ultra Fine Accuracy.” The groundbreaking movement boasts a level of precision defined not by accuracy in seconds per day, week, or month, but by its accuracy over one year. The automatic U.F.A. movement has an astounding annual rate of ±20 seconds, making it the most accurate wristwatch movement powered by a mainspring today.

In 2025, the Caliber 9RB2 makes its debut in the Evolution 9 Collection. To the east of the Shinshu Watch Studio lie the Kirigamine Highlands, where frost-covered trees can be observed during harsh winter months. The intricately textured dial captures the beauty of these ice forests thanks to finishing techniques that create pale blue tones that are subtle yet striking in their presence.

Cast in a 37mm high-intensity titanium case, this new Spring Drive UFA is equipped with Grand Seiko's newly developed three-step micro-adjustment clasp that operates without a tool, allowing precise adjustments in 2mm increments for enhanced comfort.

KEY FEATURES

  • Movement

    Spring drive
  • Dial

    White
  • Water Resistance

    100 meters
  • Case

    37mm High-intensity titanium

SPECIFICATIONS

Exterior

  • Case Material: High-Intensity Titanium
  • Glass Material: Box-shaped sapphire crystal
  • Glass Coating: Anti-reflective coating on inner surface
  • Case size: Diameter 37mm × Thickness 11mm
  • Clasp type: Tri-fold clasp with push button release and new micro-adjustment feature

Movement

  • Caliber: 9RB2 (Spring Drive 3-Day Automatic)
  • Power reserve: 72 hours (3 Days)
  • Accuracy: ±20 seconds per year

Functions

  • Water resistance: 10 bar
  • Magnetic resistance: Equipped
  • Other details / Features:
  • Exhibition caseback
  • Stop seconds (hacking) hand function
  • Date display

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About Grand Seiko

It was the determination to excel that brought about the birth of Grand Seiko in 1960. During its development and ever since, the idea that drove the designers and engineers was that Grand Seiko should be the ‘ideal’ watch with standards of precision, durability and beauty that would lead the world.

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