Grand Seiko - SBGA229

Spring Drive 200 m Diver's Stainless Steel / Black / Bracelet

Brand: Grand Seiko
Family: Spring Drive
Reference: SBGA229
Name: Spring Drive 200 m Diver's Stainless Steel / Black / Bracelet
Produced: 2017
Limited: No

Case

Material: Stainless Steel
Bezel: Rotating, 0-60 (Dive)
Glass: Sapphire
Back: Closed
Shape: Round
Diameter: 44.20 mm
Height: 14.00 mm
W/R: 200.00 m

Dial

Color: Black
Finish: Matte
Indexes: Stick / Dot
Hands: Proprietary

Description

Spring Drive 200 m Diver's SBGA229 was introduced in 2017, when Grand Seiko became a brand of its own rather than a collection within the larger Seiko family. It features a Zaratsu-polished stainless steel case with a diameter of 44.2mm and a black dial.

Movement

Grand Seiko caliber 9R65 Caliber 9R65 is a self-winding movement based on Seiko's Spring Drive technology. It is currently the most standard of the 9R Spring Drive movements, and is used in many Grand Seiko models.

Spring Drive, one of the great innovations in modern watch making history, regulates a spring-driven movement with state-of-the-art electronic technology that functions without batteries or other external power source. Its sole power source is a mainspring, which drives a series of gears. A rotor, connected to the end of these gears, generates a small electrical charge that activates an electronic circuit and quartz oscillator. Its accuracy is unprecedented for a watch wound by a mainspring. The development of the 9R Spring Drive movement was possible only because Grand Seiko is one of the few manufacturers with expertise in both mechanical and electronic watches.

Type:Spring Drive
Brand:Grand Seiko
Caliber:9R65
Display:Analog
Jewels:30
Reserve:72 h
Time:Hours, Minutes, Seconds
Date:Date
Additionals:Power Reserve Indicator

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