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Grand Seiko

Evolution 9 Spring Drive 'Atera Valley'

SKU: SLGA025
  • $10,50000

  • GRAND SEIKO AUTHORIZED DEALER
  • TOPPER EXTENDED GUARANTEE

Channeling the lush, emerald Atera Valley

Nagano Prefecture, where Spring Drive watches are manufactured, is home to a number of mountains rising over 3,000 meters. The countless rivers that flow from these mountains have, over many years, created a lush, natural environment. The Atera River carves out a deep ravine called the Atera Valley, known for its breathtaking beauty. Using the clear, emerald-green waters of the Atera River as a motif, the dial conjures the image of a stream so clear that one can see the bottom, as well as the rich, natural harmony of summertime. At the heart of this watch is the Spring Drive 5 Days Caliber 9RA2. This movement provides up to 120 hours (5 days) of power when fully wound, as well as an average accuracy of ±10 seconds per month, an astounding achievement for a watch powered by a mainspring..

Representative of the Evolution 9 Style, the 40mm high-intensity Titanium case has a lower profile and center of gravity, ensuring a comfortable fit on the wrist. Its faceted mid-case features a blend of Grand Seiko's Zaratsu polishing and hairline finishing, giving the whole watch a dynamic look and feel. This level of finishing is accomplished by hand as it demands a high degree of skill.

Case

  • Case Material: High-intensity Titanium
  • Glass Material: Dual-curved sapphire
  • Glass Coating: Anti-reflective coating on inner surface
  • Case size: Diameter 40mm
  • Strap: Titanium with tri-fold clasp and push-button release

Movement

  • Caliber no: 9RA2
  • Movement Type: Spring Drive
  • Power reserve: 5 Days (120 hours)
  • Accuracy : ±0.5 seconds per day

Functions

  • Water resistance : 10 bar
  • Magnetic resistance : Equipped
  • Other details / Features :
    • ・38 jewels
    • ・Exhibition caseback
    • ・Date display
    • ・Screw case back
    • ・Screw-down crown
    • ・Stop seconds hand function

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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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