Evolution 9

Specifications

About this reference

With its intricate pattern and delicate coloring, the watch’s dial captures the quiet mood of white birch forests near the Shinshu Watch Studio, home of Grand Seiko Spring Drive watchmaking. The watch is equipped with the Spring Drive U.F.A. Caliber 9RB2, which delivers an extraordinary annual accuracy of ±20 seconds. It also features a power reserve of approximately 72 hours (about three days) when fully wound. Both the case and bracelet are made of Ever-Brilliant Steel, which shines whiter than conventional stainless steel while offering exceptional corrosion resistance. Exterior: Exterior: Ever brilliant steel, Caseback: Ever brilliant steel and sapphire crystal; Case back: See-through & Screw case back; Glass Material: Box shaped sapphire crystal; Glass Coating: Anti-reflective coating on inner surface; Case size: Diameter 40.0mm Lug-to-lug 47.2mm Thickness 11.7mm; Band width: 22mm; Clasp type: Micro-adjustment clasp; The perimeter of Band: 197mm. Movement: Caliber no.: 9RB2 Instructions; Movement Type: Spring Drive; Power reserve: Approx. 72 hours(3 days); Accuracy: ±20 seconds per year (±3 seconds per month). Functions: Water resistance: 10 bar; Magnetic resistance: 4,800 A/m; Weight: 168 g; Other details / Features: Screw-down crown 34 jewels Power reserve indicator.