SBGR311 is a large diameter size 9S Mechanical Model with a dial surfaced by an original pattern in a special colour; limited edition of 1,300 pcs.
Grand Seiko mechanical watches are manufactured in Iwate Prefecture's Shizukuishi Town. The 9S Mechanical Model limited editions are distinctive for their brown colour reminiscent of the local traditional blacksmiths working iron with flames.
The radial spiral pattern on the dial consisting of 80 spun curved lines is an original insignia adopted for the 20th-anniversary limited edition models of the 9S Mechanical calibre and embodies the Grand Seiko spirit connecting the path of history it has followed to the future. The “G” and “S” of Grand Seiko and the “S” mark of Daini Seikosha (currently Seiko Instruments Inc.), which produced the first 10-beat watch, “45GS,” are regularly arranged.
In the distinctive 42mm case, SBGR311 equips calibre 9S68 which is the large size automatic mechanical movement with date display. Being large in diameter size, SBGR311 achieves an elegant form with their narrowed lugs on the inner side and are designed to maintain high visibility and presence while still fitting nicely on the wrist.
Special specifications on the case back include the Grand Seiko lion emblem in gold colour and a "Calibre 9S 20th Anniversary Since 1998 Limited Edition" inscribing, along with the 0001/1300~1300/1300 serial number.
Grand Seiko Heritage Collection Caliber 9S 20th Anniversary Limited Edition
Limited Edition of 1,200pcs
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)
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 Case back with lion emblem Date display Screw case back Screw-down crown See-through case back Serial number engraved on the case back Stop seconds hand function 35 jewels