Grand Seiko
Grand Seiko Grand Seiko Masterpiece Spring Drive Manual-winding 40 SBGZ011
The Grand Seiko Grand Seiko Masterpiece Spring Drive Manual-winding 40 (reference SBGZ011) is a 40 mm platinum 950 watch. It runs on the spring Drive caliber 9R02 with a 84-hour power reserve.
Specifications
Case
- Reference
- SBGZ011
- Collection
- Masterpiece
- Case size
- 40 mm
- Thickness
- 9.6 mm
- Case material
- Platinum 950
- Case shape
- Round
- Bracelet / strap
- Crocodile leather strap
Movement
- Movement
- Spring Drive
- Caliber
- 9R02
- Power reserve
- 84 hours
Production
- Production
- Limited
Dial versions
This reference was made with these dials and finishes.
SBGZ011
Hand-engraved water pattern
How it compares within the Masterpiece family
Side by side with other references in the same collection, from the catalog.
About the Masterpiece family
Masterpiece is Grand Seiko's top-tier collection, with extra hand-finishing of cases, dials and movements. The references here are Spring Drive models made in precious metals.
They include watches with the caliber 9R01, a hand-wound Spring Drive with an eight-day power reserve, and the 9R02, in platinum and rose gold. These are expensive, low-volume pieces, so complete papers, the original box and a service history from Grand Seiko make a large difference.
Quick answers
- What size is the Grand Seiko Grand Seiko Masterpiece Spring Drive Manual-winding 40 SBGZ011?
- The Grand Seiko Grand Seiko Masterpiece Spring Drive Manual-winding 40 SBGZ011 has a 40 mm case, 9.6 mm thick.
- What movement does the Grand Seiko Grand Seiko Masterpiece Spring Drive Manual-winding 40 SBGZ011 use?
- It uses the spring drive caliber 9R02, with a 84-hour power reserve.
- Is the Grand Seiko Grand Seiko Masterpiece Spring Drive Manual-winding 40 SBGZ011 still in production?
- Limited.
- What is the Grand Seiko Grand Seiko Masterpiece Spring Drive Manual-winding 40 SBGZ011 made of?
- The case is platinum 950. Bracelet or strap: Crocodile leather strap.
Catalog facts checked October 2026.