Description
White Birch
SLGA009 captures the quiet mood of the white birch tree forests near the studio in Shinshu, where all Grand Seiko Spring Drive watches are crafted.
Spring Drive 5 Days, Caliber 9RA2
SLGA009 is powered by the Grand Seiko Spring Drive 5 Days Caliber 9RA2. The movement is equipped with an “Offset Magic Lever” to reduce its thickness and incorporates two barrels to provide up to 120 hours of power reserve. The beauty of the movement reveals the uniquely Japanese aesthetic for which Grand Seiko is renowned. The delicate texture of the movement’s finish reflects the frost that winter brings to the forests in Shinshu where all Spring Drive watches are made. The bridge line and the edges of the screw holes are diamond cut to reflect the light from any angle and give the movement a quiet glow when seen through the sapphire case back.
TECHNICAL DATA
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 40.0mm Lug-to-lug 47.9mm Thickness 11.8mm
Band width: 22mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 196mm
MOVEMENT
Caliber no.: 9RA2 Instructions
Movement Type: Spring Drive
Power reserve: Approx. 120 hours (5 days)
Accuracy: ±10 seconds per month (±0.5 second per day)
FUNCTION
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Weight: 176 g
Other details / Features:
Screw-down crown
Power reserve indicator
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