GRAND SEIKO SBGW283G - MECHANICAL 9S64 CALIBER

KISHUN, THE FIRST DAYS OF SUMMER

Powered by the slim, hand-wound movement, Caliber 9S64, this watch is the epitome of simple refinement. The dial is simple and clean but, when viewed through the sapphire case back, the intricate perfection of the engineering of the hand-assembled and adjusted movement is abundantly and satisfyingly clear. Thanks to a long mainspring and a balance both made of a proprietary metals, this watch has a high and stable accuracy rate and a power reserve of 72 hours. The dial is in a delicate shade of pale blue, the color of the skies above Mt. Iwate as summer begins, the season known as Kishun.

Caliber no. : 9S64    Instructions

Movement Type :  Mechanical manual winding

Power reserve :  Approx. 72 hours(3 days)

Accuracy : +5 to -3 seconds per day

Case Material : Stainless Steel

Glass Material :  Box shaped sapphire crystal

Glass Coating : Anti-reflective coating on inner surface

Case size :  Diameter 37.3mm Lug-to-lug 44.3mm Thickness 11.7mm

Band Material : Fine Crafted Leather

The perimeter of Band :  195mm

Water resistance :  Splash Resistant

Magnetic resistance :  4,800 A/m

Weight :  61.0 g

Other details / Features : 

24 jewels

Case back with 6 screws

See-through case back

Stop seconds hand function