Grand Seiko Heritage Collection Caliber 9S 20th Anniversary Limited Edition
SBGR311
Limited Edition of 1,300 Pieces
From SBGR311 to Tokyo Discoveries – Your Watch Journey Starts Here
The Grand Seiko SBGR311 is a 42mm mechanical masterpiece created to celebrate the 20th anniversary of the iconic 9S mechanical movement. Limited to just 1,300 pieces worldwide, this model stands out with a rich brown dial inspired by the fiery craftsmanship of traditional blacksmiths in Shizukuishi Town, Iwate Prefecture, the birthplace of Grand Seiko mechanical watches.
🔸 The dial features a radial spiral insignia made up of 80 gracefully curved lines. This exclusive pattern honors the legacy of Grand Seiko and includes elements from historic Seiko icons, such as the “G” and “S” marks and the “S” emblem from Daini Seikosha, renowned for the original 10-beat “45GS”.
🔧 Powered by the high-performance Caliber 9S68, this automatic movement offers precision with a date display, while the narrowed inner lugs ensure both elegance and wrist comfort, despite the larger diameter size.
🏅 Special touches include a gold lion emblem and “Calibre 9S 20th Anniversary Since 1998 Limited Edition” engraving on the case back, along with the individual serial number from 0001/1300 to 1300/1300.
Whether you’re a devoted Grand Seiko collector or exploring Japanese horology for the first time, the SBGR311 represents the fusion of tradition, innovation, and timeless design.
SBGR311 Specification:
Movement
Caliber: 9S68
Movement Type: Automatic with manual winding capacity
Power reserve: Approx. 72 hours(3 days)
Accuracy: +5 to -3 seconds per day (when static) / +10 to -1 seconds per day (normal usage accuracy)
Jewel: 35
Exterior
Case Material: Stainless steel
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 42mm × Thickness 13.1mm
Band Material: Stainless steel
Clasp type: Three-fold clasp with push button release
Other details
Water resistance: 10 Bar
Magnetic resistance: Equipped
Date display
Screw case back
Screw-down crown
See-through case back
Serial number engraved on the case back
* Kindly note that the displayed image is either a graphic representation or a prototype and may not reflect the final product precisely. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the orientation of the case back in the actual product may differ from what is shown in the photograph.
