Grand Seiko

Shokan Sekki SBGA407

Reference Number :

SBGA407

Series : Elegance

Retail: $6,100

(As of: 02/2025)

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 "Blue Snowflake," reference SBGA407, quietly boasts Grand Seiko's mastery, where meticulous craft meets artistic inspiration. It captures a moment, Shokan's crisp winter beauty, with the icy texture and a unique shade of blue. The dial isn't just a face; it's a landscape. The Spring Drive movement, Caliber 9R65, makes the hands dance with a captivating glide, mirroring time's own flow, free from the mechanical tick-tock, a continuous sweep. Observe the power reserve, and see the heart's vitality—a full three days when fully charged. With its see-through back, the finely-tuned engine isn't hidden, rather celebrated. It's an experience worn on the wrist, an ode to precision, it speaks subtly, but carries a presence beyond measurements. A symphony of engineering and art.

DescriptionThe Grand Seiko SBGA407, a member of the Elegance Collection, embodies a refined aesthetic coupled with advanced horological engineering. Its stainless steel exterior exhibits a diameter of 40.2mm, a lug-to-lug measurement of 48.5mm, and a thickness of 12.8mm. This case construction integrates a see-through case back, secured by six screws, offering a view of the intricate movement within. Protecting the dial is a box-shaped sapphire crystal, treated with an anti-reflective coating on its inner surface to enhance legibility and minimize glare. The strap, crafted from crocodile leather, measures 19mm in width and fastens securely with a three-fold clasp featuring a push-button release. This timepiece derives its distinctive character from the dial, widely recognized as the "Snowflake". Inspired by the wind-driven snow of the Shinshu region, the dial's textured surface is rendered in a subtle blue hue, evoking the winter landscapes of Japan.

At the operational heart of the SBGA407 is the Caliber 9R65 Spring Drive movement, a testament to Grand Seiko's pursuit of precision and innovation. This movement ingeniously merges the traditional mainspring power source, commonly found in mechanical watches, with the accuracy typically associated with quartz timekeeping. The Caliber 9R65 maintains an accuracy of ±15 seconds per month, which averages to approximately ±1 second per day. Once fully wound, the movement offers a substantial power reserve of approximately 72 hours (3 days), displayed via a power reserve indicator located on the dial. The movement is not only mechanically sophisticated, using 30 jewels to reduce friction, but is also visible through the transparent caseback. It includes a gliding motion of the seconds hand, which is visually striking against the dial's serene backdrop. Operational integrity is further ensured by a magnetic resistance of 4,800 A/m and a water resistance rating of 10 bar.

Also Known AsBlue Snowflake

GenderMen

SignaturesGrand Seiko

Country of OriginJapan

Case Size40.2 mm

MovementAutomatic

Caliber9R65

FunctionsHours, Minutes, Seconds, Date, Power Reserve

Power Reserve72 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel