An elegant timepiece inspired by Ryūsendō
Located in Iwaizumi in eastern Iwate Prefecture, Ryūsendō Cave is known for its extensive subterranean galleries arching over deep sunless lakes of clear blue water. This effect is captured by the dial’s vibrant dial color and dazzling pattern.
The stainless steel case of SBGK015 is polished by a special Zaratsu method developed to accentuate the beauty of the case's curved surfaces. The dial and sapphire crystal are also curved to give the watch a classic look. Additionally, the dial features hand-bent minute and power reserve hands, a nod to classic watch design.
Caliber 9S63 is a slimmer mechanical package, and it offers a small seconds register at the nine o’clock position and a power reserve indicator at three. The thinness of the movement allows for a slimmer, dressier design overall, allowing SBGK015 to slide comfortably under a shirt cuff.
SBGK015 is a U.S. Limited Edition of 300 watches.
|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 Material:||Crocodile leather|
|Clasp type:||Three-fold clasp with push button release|
|Caliber no.:||9S63 Instructions|
|Movement Type:||Manual winding|
|Power reserve:||Approx. 72 hours(3 days)|
|Mean daily rate:||
+5 to -3 seconds per day
|Normal usage accuracy:||+10 to -1 seconds per day|
|Water resistance:||Splash Resistant|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Grand Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.