Features
A Spring Drive model with a high-intensity titanium case
The SBGA259 is powered by Spring Drive, Grand Seiko’s unique caliber, which combines the motive force of a mainspring found with the high precision of a quartz watch.
The case and bracelet are made with high-intensity titanium, providing a scratch and corrosion resistant finish, making it 30% lighter than stainless steel and a pleasure to wear.
The second hand moves smoothly in glide motion, and glows over the contrasting pure white face to create an even more dramatic movement.
It has a 72-hour (3-day) power reserve, and a power reserve indicator on the bottom left of the dial.
Specifications
Exterior
| Exterior: | High-intensity titanium |
|---|---|
| Case back: | See-through & Screw case back |
| Glass Material: | Dual-curved sapphire crystal |
| Glass Coating: | Anti-reflective coating on inner surface |
| Case size: | Diameter 41.0mm Lug-to-lug 49.0mm Thickness 12.5mm |
| Band width: | 20mm |
| Clasp type: | Three-fold clasp with push button release |
| The perimeter of Band: | 193mm |
Movement
| Caliber no.: | 9R65 Instructions |
|---|---|
| Movement Type: | Spring Drive |
| Power reserve: | Approx. 72 hours(3 days) |
| Accuracy: | ±15 seconds per month (±1 second per day) |
Functions
| Water resistance: | 10 bar |
|---|---|
| Magnetic resistance: | 4,800 A/m |
| Weight: | 100 g |
| Other details / Features: |
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