Inspired by the rich green forests that can be seen in the high mountains that surround the Shinshu Watch Studio in central Japan, this new Grand Seiko reference delivers both drama and richness in color, with high performance and all the globe-trotting capability of the maker's state-of-the-art Spring Drive movement. Thanks to Grand Seiko's proprietary Spring Drive caliber, the seconds hand glides silently and smoothly, with no ‘tick’, across the dial, perfectly reflecting the natural and continuous flow of time. The power reserve is 72 hours when fully wound and is shown on the discreet indicator next to the eight o’clock marker. The GMT hand allows a second time zone to be shown and the hour can be adjusted without compromising the one-second-a-day precision of Spring Drive.

Exterior

• Case Material : Stainless steel
• Glass Material : Dual-curved sapphire
• Glass Coating : Anti-reflective coating on inner surface
• Lumi Brite : Lumibrite on hands and indexs
• Case size : Diameter 44mm × Thickness 14.7mm
• The perimeter of Band : 191mm
• Clasp type : Three-fold clasp with push button release

Movement

• Caliber no. : 9R66 Instructions
• Movement Type : Spring Drive
• Power reserve : Approx. 72 hours(3 days)
• Accuracy : ±1 second per day / ±15 seconds per month (average)

Functions

• Water resistance : 20 bar
• Magnetic resistance : Equipped
• Weight : 177.0 g
• Other details / Features :
• 24-hour hand (dual time display function)
• 30 jewels
• Calendar-linked time difference adjustment function
• Case back with lion emblem
• Date display
• Power reserve display
• Rotating bezel (24-hour display)
• Screw case back
• Screw-down crown
• Stop seconds hand function