Evolution 9

Specifications

About this reference

SLGH011 captures the dynamism of the white birch tree forests near the studio in Shizukuishi, where all Grand Seiko mechanical watches are crafted. To look closely at the dial is to experience the exact same feeling that the visitor to these forests receives and to be brought closer than ever to the true and eternal nature of time. The overall look of the watch is known as the Evolution 9 Style. Its powerful hands and grooved, prominent markers ensure perfect legibility, its Zaratsu polished, distortion-free mirror finish and delicate brushed finish alternate to give the case a quiet and harmonious glow. The case has wide lugs and a low center of gravity that ensures that the watch sits easily and securely on the wrist. The high-beat watch is powered by the revolutionary Caliber 9SA5, which offers a power reserve of 80 hours thanks to its enhanced energy efficiency. Exterior: Exterior: Stainless steel; 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 47.0mm Thickness 11.7mm; Band width: 22mm; Clasp type: Folding clasp with push button release; The perimeter of Band: 190mm. Movement: Caliber no.: 9SA5 Instructions; Movement Type: Self-winding with manual-winding; Power reserve: Approx. 80 hours; Mean daily rate: +5 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: +8 to -1 seconds per day. Functions: Water resistance: 10 bar; Magnetic resistance: 4,800 A/m; Weight: 178 g; Other details / Features: Screw-down crown.