Heritage

Specifications

About this reference

STGK009 catches the eye with its mother-of-pearl dial and with a blue seconds hand that is tempered by hand to a deep and powerful blue. With lines that are classic but details that are distinctively Grand Seiko, it is at once subtle and yet striking. It is powered by a remarkable automatic movement created especially for Grand Seiko’s women's watches which combines durability, accuracy and a remarkable 50 hours of power reserve with a slimness that belies the movement’s strength. The elegance shines, both inside and out. Exterior: Exterior: Stainless steel; Case back: See-through & Screw case back; Glass Material: Dual-curved sapphire crystal; Glass Coating: Anti-reflective coating on inner surface; Case size: Diameter 27.8mm Lug-to-lug 33.5mm Thickness 11.2mm; Band width: 13mm; Clasp type: Folding clasp with push button release. Movement: Caliber no.: 9S27 Instructions; Movement Type: Self-winding with manual-winding; Power reserve: Approx. 50 hours; Mean daily rate: +8 to -3 seconds per day Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.; Normal usage accuracy: +10 to -5 seconds per day. Functions: Water resistance: 10 bar; Magnetic resistance: 4,800 A/m; Other details / Features: Mother of pearl dial 35 jewels.