Grand Seiko’s deep connection to the natural landscapes of Japan is expressed with quiet clarity on the Snowflake dial of SBGX359. Inspired by the snow-covered Hotaka mountain range in Shinshu, the finely textured white surface reflects the way winter light plays across freshly fallen snow. Created through a meticulous silver-plating and finishing process rather than white paint, the dial reveals subtle variations in depth that shift with the light, capturing the stillness and purity of the season.
The stainless steel case measures 33.0mm in diameter and just 9.1mm in thickness, offering a compact and balanced presence on the wrist. A dual-curve sapphire crystal with anti-reflective coating ensures legibility from every angle, while Zaratsu-polished surfaces contrast with finely brushed planes, reinforcing Grand Seiko’s signature clarity of form.
Powering the watch is Caliber 9F51, a high-precision quartz movement developed to deliver exceptional performance in a slimmer profile. Rated to an accuracy of ±10 seconds per year, the movement incorporates individually selected and aged quartz crystals, thermo-compensation for stable timekeeping, and a backlash auto-adjust mechanism that ensures a smooth, precise motion of the seconds hand. Assembled by hand at the Shinshu Watch Studio, Caliber 9F51 reflects Grand Seiko’s pursuit of quartz watchmaking at its highest level.
The softly textured white dial reflects the snow-covered Hotaka mountains near the Shinshu Watch Studio, with subtle depth that allows light to move across its surface.
A 33.0mm stainless steel case measuring just 9.1mm thick delivers refined proportions and balanced wearability.
Hand-assembled at the Shinshu Watch Studio, Caliber 9F51 offers ±10 seconds per year accuracy in a newly compact form.
Free 2-3 Day Shipping
2-Week Returns & Exchanges
Exclusive 6-Year Warranty
Customer Support
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.
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.
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.
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
