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Collections Heritage Collection Spring Drive SBGA429
Grand Seiko SBGA429 Soko grey dial stainless steel case Spring Drive
Grand Seiko SBGA429 Soko grey dial stainless steel case Spring Drive
Grand Seiko SBGA429 Spring Drive 9R65
Grand Seiko SBGA429 crocodile leather strap
Grand Seiko SBGA429 Soko grey dial stainless steel case Spring Drive
Grand Seiko SBGA429 Soko grey dial stainless steel case Spring Drive

Spring Drive SBGA429

Grand Seiko Heritage Collection
USD $5,000
US Exclusive
Out of Stock


Sokō Special Edition

SBGA429 celebrates sokō, the end of Autumn when the first frost embraces the forest. The green accent colors on the second hand and the power reserve indicator evoke the verdant life of Kyoto's Arashiyama bamboo forest in its peak season at the end of autumn, and the dials' vertical texture reflects the tall bamboo stalksThe Arashiyama bamboo grove is known for its interplay of light and shadow, and so there are two editions: SBGA429 is "shadow" and SBGA427 is "light."  

The 39mm stainless steel case houses the Spring Drive 9R65 Caliber, which is designed, adjusted, and assembled by hand by acclaimed craftsmen and women at the Shinshu Watch Studio in Japan. Spring Drive, recognized as one of the great innovations in modern watchmaking, is a spring-driven movement with a state-of the-art electro-magnetic regulator that functions without an external power source. Its sole power source is a mainspring, which drives a series of gears as a traditional mechanical watch, and delivers a precision of one second a day, a rate unprecedented for a watch powered by a mainspring.

In addition to the bracelet, SBGA429 comes with a crocodile leather strap and three-fold clasp with push button release. 

Case Material : Stainless Steel
Case Diameter : 39mm
Case Thickness : 12.3mm
Case Length : 46.8mm
Lug Width : 19mm
Dial Color : Grey
Crown : Screw Down
Strap/Bracelet : Stainless Steel w. three-fold clasp + additional grey crocodile strap w. clasp
Crystal : Dual Curve Sapphire
Caseback : Stainless Steel with Sapphire Crystal
Special : US Exclusive
Caliber : 9R65
Type : Spring Drive
Power Source : Automatic
Jewels : 30
Accuracy : ±1 second per day / ±15 seconds per month (average)
Duration : 72 Hours
Features : Time, Date, Power Reserve Indicator
Water Resistance : 100m
Magnetic Resistance : 4,800 A/m
Grand Seiko’s Boutique Online Services
Free 2-3 Day Shipping
2-Week Returns & Exchanges
Exclusive 6-Year Warranty
Customer Support
A dark dial wristwatch on a book.
Capturing the interplay of light and shadow, SBGA429 embodies the latter with its dark dial.
Close up of a dark dial wristwatch with green accents.
Light green offers a splash of color against the dark dial.
A dark dial wristwatch on a book.
Close up of a dark dial wristwatch with green accents.
Free 2-3 Day Shipping

Free shipping is 2-3 business days via Fed Ex Signature Required. Orders placed before 2 pm ET are generally processed and shipped on the same business day, and orders placed after 2 pm ship the following business day. Orders are processed Monday – Friday, and orders placed on Holidays will be processed the following business day. Next Day Service can be purchased for $50 and includes Saturday Delivery when applicable. Please see TERMS for more.

2-Week Returns and Exchanges

Products may be returned to Grand Seiko Boutique Online within 14 days of the delivery date. Option for a return and refund or exchange is possible when the watch is returned in new, unworn condition, with all original contents included in the package. Upon receiving your return, Grand Seiko will verify the condition of the watch. If there are any missing items, damage, or wear found, you may be subject to fees accordingly. Please be sure to remove any jewelry or other watches before trying on the watch to avoid damage.  Please do not size the watch if you return it as it will not be considered new. Please contact the Grand Seiko Boutique Online team HERE to initiate a return. Please see the TERMS for more.

Exclusive 6-Year Warranty

Warranty – All Grand Seiko watches come with a 5-year international warranty. Grand Seiko Boutiques and Grand Seiko Boutique Online provide an additional 1-year warranty at no additional charge for a total of 6 years coverage under the limited warranty. Please see the TERMS for more.

Customer Support

Email, Phone, and Live chat info:

Scheduled hours of operation are Mon-Fri 9am-6pm. However, Grand Seiko Boutique teams may be able to assist at other times depending on availability.

Email: boutique.online@grand-seiko.us.com 

Phone: 888-300-8463