Grand Seiko

Soko Special Edition SBGA427

Reference Number :

SBGA427

Series : Heritage

Retail: $5,300

(As of: 01/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Grand Seiko. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThe SBGA427 is an alluring timepiece. It's a symphony of Japanese craftsmanship and subtle elegance, perfect for someone who appreciates the understated yet profound beauty found in nature's transitions. This watch's heart beats with the renowned Spring Drive movement, a seamless blend of traditional watchmaking and modern tech. The dial mirrors the serene, vertical lines of a bamboo forest at autumn's close, with a verdant whisper on the seconds hand and power reserve that hints at life amidst the frost. Slip this Grand Seiko on, and you're not just wearing a watch; you're carrying a piece of art, an innovative spirit, and a slice of the serene Arashiyama bamboo forest wherever you go. The stainless steel case feels robust, yet it's surprisingly graceful on the wrist, embodying a refined toughness. Every glance at the time is an escape to a tranquil Japanese landscape. This watch is far more than a gadget to tell the time; it is an elegant nod to nature and a personal statement piece.

DescriptionThe Grand Seiko Heritage Collection SBGA427, part of the Soko Special Edition, draws its inspiration from soko, the period marking the end of autumn when the first frost descends upon the forest. The case is stainless steel, measuring 39.0mm in diameter, 46.8mm lug-to-lug, and 12.3mm in thickness, exhibiting a refined profile. The watch features a dual-curved sapphire crystal with an anti-reflective coating on the inner surface, ensuring readability under various lighting conditions. The case back is see-through and secured with screws, offering a glimpse into the intricate workings of the movement. The timepiece maintains a water resistance of 10 bar and magnetic resistance of 4,800 A/m. The bracelet, also crafted from stainless steel, has a width of 19mm and is equipped with a three-fold clasp that features a push-button release for secure and comfortable wear. The dial, reflecting the light silver tones, features a vertical texture reminiscent of bamboo stalks, and includes green accents on the seconds hand and power reserve indicator, symbolizing the vibrancy of the Arashiyama bamboo forest in Kyoto during its peak season.

Powering this timepiece is the Spring Drive 9R65 Caliber, a movement distinguished by its unique combination of a mainspring, the traditional power source in mechanical watches, and an advanced electromagnetic regulator that enhances precision without the need for an external power source. This caliber is meticulously designed, adjusted, and assembled by hand at the Shinshu Watch Studio in Japan. The 9R65 movement achieves a precision of ±15 seconds per month (±1 second per day) and boasts a power reserve of approximately 72 hours. The movement comprises 30 jewels and features a power reserve indicator on the dial, adding to the watch's functionality. A notable characteristic of the Spring Drive movement is the smooth, sweeping motion of the seconds hand, which glides across the dial, symbolizing the continuous flow of time, unlike the traditional ticking motion found in quartz watches.

GenderUnisex

SignaturesGrand Seiko

Country of OriginJapan

Case Size39 mm

MovementAutomatic

Caliber9R65

FunctionsHours, Minutes, Seconds, Date, Power Reserve

Power Reserve72 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal