Grand Seiko 9S Mechanical GMT SBGM221G
This classic GMT watch combines the style that has long captivated watch lovers with an evolved Caliber 9S66 movement. The watch has a 3-day power reserve and combines the latest in hairspring technology with an escapement developed through MEMS technology to achieve high accuracy and stability when worn.
Exterior
| Exterior: | Stainless steel |
|---|---|
| Case back: | See-through case back |
| Case back with 6 screws | |
| Glass Material: | Box shaped sapphire crystal |
| Glass Coating: | Anti-reflective coating on inner surface |
| Case size: | Diameter 39.5mm Lug-to-lug 46.9mm Thickness 13.7mm |
| Band width: | 19mm |
| Band Material: | Leather Strap |
| Clasp type: | Three-fold clasp with push button release |
Movement
| Caliber no.: | |
|---|---|
| Movement Type: | Automatic with manual winding |
| Power reserve: | Approx. 72 hours(3 days) |
| Mean daily rate: | +5 to -3 seconds per day |
Functions
| Water resistance: | Splash Resistant |
|---|---|
| Magnetic resistance: | 4,800 A/m |
| Other details / Features: |
|