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
