Grand Seiko - SBGR255

Automatic Date Stainless Steel / White / Bracelet

Brand: Grand Seiko
Family: Mechanical
Reference: SBGR255
Name: Automatic Date Stainless Steel / White / Bracelet
Produced: 2017
Limited: No


Material: Stainless Steel
Glass: Sapphire
Back: Open
Shape: Round
Diameter: 39.40 mm
Height: 13.50 mm
W/R: 100.00 m


Color: White
Finish: Gloss
Indexes: Stick / Dot
Hands: Dauphine


The Grand Seiko SBGR255 was introduced with the re-branding of Grand Seiko in 2017. This watch features a stainless steel case with crown guards, and a white dial. It is powered by the self-winding caliber 9S65.


Grand Seiko caliber 9S65 Caliber 9S65 is the most standard automatic movement that typifies the 9S mechanical series. The old and new movements may appear to have a similar design, but they are utterly different in terms of performance.

Grand Seiko has not only revised the materials used to make this movement, but also applied MEMS (Micro Electro Mechanical System) technology, which utilizes semi-conductor manufacturing technology, to the production of the watch parts. Grand Seiko has significantly enhanced the basic performance of this timepiece, and has also redesigned the way in which the oscillating weight winds the mainspring.

The winding system of its predecessor, Caliber 9S55, used Grand Seiko's Magic Lever mechanism. By contrast, Caliber 9S65 uses reverser gear train system. Hardening the components has helped improve the durability of the reverser system, which had been a weakness.

Brand:Grand Seiko
Diameter:28.40 mm
Reserve:72 h
Frequency:28800 bph
Time:Hours, Minutes, Seconds

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