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| Brand: | Grand Seiko |
|---|---|
| Family: | Spring Drive |
| Reference: | SBGE227 |
| Name: | Spring Drive GMT Stainless Steel / Black / Strap |
| Produced: | 2017 |
| Limited: | No |
| Material: | Stainless Steel |
|---|---|
| Bezel: | Rotating, 24 Hour |
| Glass: | Sapphire |
| Back: | Closed |
| Shape: | Round |
| Diameter: | 40.20 mm |
| Height: | 14.00 mm |
| W/R: | 100.00 m |
| Color: | Black |
|---|---|
| Finish: | Gloss |
| Indexes: | Stick / Dot |
| Hands: | Dauphine |
The Grand Seiko Spring Drive GMT SBGE227 was introduced in 2017. It features a stainless steel case and a black dial with railroad style 24-hour track. This watch is fitted with a black crocodile strap.
Caliber 9R66 is a self-winding movement with GMT function, based on Seiko's Spring Drive technology. It was introduced in 2006.
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: | 9R66 |
| Base: | Grand Seiko9R65 |
| Display: | Analog |
| Jewels: | 30 |
| Reserve: | 192 h |
| Time: | Hours, Minutes, Seconds, Additional 24 Hour Hand (adjustable) |
| Date: | Date |
| Additionals: | Power Reserve Indicator |
More watches using the Grand Seiko 9R66 caliber