Byōka, beauty of the end of summer on the dial
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 deep green in color and is inspired by Byōka, which marks the transition from summer to autumn. The first morning dew appears and the wind feels cool against the skin. It is still the end of August but summer is short in Shizukuishi and the early signs of autumn are in the air. The green of the leaves on the trees is increasingly deep and, with its delicately textured surface, the dial reflects its own special beauty.
Specifications
Exterior
Exterior: Stainless steel
Case back: See-through case back
Case back with 6 screws
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 width: 19mm
Band Material: Crocodile leather
The perimeter of Band: 195mm
Movement
Caliber no.: 9S64 Instructions
Movement Type: Manual winding
Power reserve: Approx. 72 hours(3 days)
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: +10 to -1 seconds per day
Functions
Water resistance: Splash Resistant
Magnetic resistance: 4,800 A/m
Weight: 61 g
Other details / Features:
24 jewels
Explore more of the Grand Seiko collection or view more timepieces here.
