Heritage

Specifications

About this reference

Shinshu, the region where all Grand Seiko Spring Drive watches are created, was once a major center of silk production. This classic design has a dial whose silken sunray pattern pays tribute to this heritage. The fine grain of the pattern radiates outwards and catches the light at every angle. It has a soft texture, as if it were the finest silk, which can only be created by the application of soft silver, using a special method of silver plating. Thanks to Grand Seiko’s unique Spring Drive movement, 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 index. Exterior: Exterior: Stainless steel; Case back: Screw case back; Glass Material: Dual-curved sapphire crystal; Glass Coating: Anti-reflective coating on inner surface; Case size: Diameter 40.0mm Lug-to-lug 46.6mm Thickness 12.3mm; Band width: 20mm; Clasp type: Folding clasp with push button release; The perimeter of Band: 203mm. Movement: Caliber no.: 9R65 Instructions; Movement Type: Spring Drive; Power reserve: Approx. 72 hours(3 days); Accuracy: ±15 seconds per month (±1 second per day). Functions: Water resistance: 10 bar; Magnetic resistance: 4,800 A/m; Other details / Features: Screw-down crown 30 jewels Power reserve indicator.