Grand Seiko SBGK009

Royal Jewelers is an authorized Grand Seiko dealer in the Boston area and offers the SBGK009 with Grand Seiko's 5 year warranty.

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 39.0mm Lug-to-lug 44.0mm Thickness 11.6mm
Band width:	19mm
Clasp type:	Three-fold clasp with push button release

Movement

Caliber no.:	9S63 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 -5 seconds per day

Functions

Water resistance:	Splash Resistant
Magnetic resistance:	4,800 A/m
Other details / Features:	31 jewels Equipped with small seconds hand Power reserve indicator