Grand Seiko
Grand Seiko Grand Seiko Spring Drive SBGA101
The Grand Seiko Grand Seiko Spring Drive (reference SBGA101) is a 40.5 mm stainless steel watch with a black dial. It runs on the spring Drive caliber 9R65 and is water resistant to 100 m.
Specifications
Case
- Reference
- SBGA101
- Collection
- Spring Drive
- Case size
- 40.5 mm
- Thickness
- 12.9 mm
- Case material
- Stainless steel
- Water resistance
- 100 m
- Bracelet / strap
- Stainless steel
Dial and bezel
- Dial
- Black
Movement
- Movement
- Spring Drive
- Caliber
- 9R65
- Functions
- Date, Power reserve indicator
Dial versions
This reference was made with these dials and finishes.
SBGA101 Black
Matte
How it compares within the Spring Drive family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| SBGA101 (This watch) | 40.5 mm | Stainless steel | Black | 9R65 | — |
| SBGA385 | 40 mm | Platinum | Silver | 9R15 | 2018– |
| SBGC204 | 43.5 mm | Pink gold | Silver | 9R86 | — |
| SBGC219 | 46.4 mm | Titanium / Ceramic | Blue | 9R96 | — |
| SBGD001 | 43 mm | Platinum | White | 9R01 | 2016–2017 |
| SBGD205 | 43 mm | Platinum | Silver | 9R01 | 2020– |
| SBGD207 | 43 mm | Platinum | Green | 9R01 | 2021– |
| SBGE001 | 44 mm | Stainless steel | Black | 9R66 | 2011– |
| SBGE227 | 40.2 mm | Stainless steel | Black | 9R66 | — |
About the Spring Drive family
Spring Drive is Grand Seiko's hybrid movement: a mainspring powers the watch as in a mechanical movement, but the speed is controlled by a quartz crystal and an electromagnetic brake, which gives high accuracy and a seconds hand that glides without ticking. Grand Seiko has used it since 2004.
The references listed here use calibers including the 9R65 and 9R66, the 9R86 chronograph, the 9R15 and the eight-day 9R01, in steel, titanium, gold and platinum. Buyers value the full set, and a service from Grand Seiko is recommended for these movements.
Quick answers
- What size is the Grand Seiko Grand Seiko Spring Drive SBGA101?
- The Grand Seiko Grand Seiko Spring Drive SBGA101 has a 40.5 mm case, 12.9 mm thick.
- What movement does the Grand Seiko Grand Seiko Spring Drive SBGA101 use?
- It uses the spring drive caliber 9R65.
- How water resistant is the Grand Seiko Grand Seiko Spring Drive SBGA101?
- It is water resistant to 100 metres.
- What is the Grand Seiko Grand Seiko Spring Drive SBGA101 made of?
- The case is stainless steel. Bracelet or strap: Stainless steel.
Catalog facts checked October 2026.