Grand Seiko

Soko Special Edition SBGA429

Reference Number :

SBGA429

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 TakeThis Grand Seiko Heritage model, with its muted grey dial and vibrant green accents, screams understated cool. It's the kind of watch that whispers, not shouts, about its impressive Spring Drive movement. This isn't just any movement, it's a hybrid marvel that blends the soul of a mechanical watch with the precision of quartz, resulting in a seconds hand that glides like a skater on ice. That unique, vertically textured dial, reminiscent of bamboo stalks, adds an unexpected artistic touch. This isn't your average boardroom watch, it's a piece for the person who appreciates meticulous craftsmanship, innovative technology, and a dash of nature-inspired design. This Grand Seiko Soko Special Edition is for someone who values substance over flash. The watch is a horological chameleon, able to seamlessly shift from casual to dressy scenarios, always exuding an air of refined taste, confidence, and a deep appreciation for the art of Japanese watchmaking. It's the perfect companion for the individual who leads a dynamic life, always in motion, but always grounded in an appreciation for the finer details. The wearer appreciates the unique character and the story behind this timepiece's design.

DescriptionThe Grand Seiko SBGA429, a member of the Heritage Collection, features a stainless steel exterior with a see-through and screw case back, showcasing the intricate Spring Drive movement within. The case measures 39.0mm in diameter, with a lug-to-lug distance of 46.8mm and a thickness of 12.3mm. The dial is protected by a dual-curved sapphire crystal, treated with an anti-reflective coating on the inner surface for enhanced readability. The watch's 19mm band is secured by a three-fold clasp with a convenient push-button release mechanism. The watch has a water resistance rating of 10 bar, making it suitable for everyday wear and some water activities, and it is resistant to magnetic fields up to 4,800 A/m. The dial is inspired by "soko", the end of Autumn, when the first frost embraces the forest. The dial reflects this with a vertical texture that mirrors the majestic stalks of bamboo in the Arashiyama bamboo forest in Kyoto. Green accent colors are used on the seconds hand and power reserve indicator, which symbolize the life of the bamboo forest in its peak season. These design elements pay tribute to this specific moment in nature.

Powering the SBGA429 is the esteemed Spring Drive 9R65 caliber. This movement is meticulously designed, adjusted, and assembled by hand by the skilled craftsmen and women at the Shinshu Watch Studio in Japan. The Spring Drive technology represents a significant advancement in watchmaking, utilizing a mainspring as its sole power source while incorporating a state-of-the-art electro-magnetic regulator. This unique combination eliminates the need for an external power source and ensures an exceptional accuracy of ±15 seconds per month, equivalent to ±1 second per day. The movement offers an impressive power reserve of approximately 72 hours (3 days) when fully wound. This mechanism drives a series of gears, similar to a traditional mechanical watch, but with enhanced precision. The movement's smooth, sweeping motion of the seconds hand around the dial embodies the poetic passage of time, further emphasized by the inclusion of a power reserve indicator and 30 jewels within the movement's construction.

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