Overview
The SBGA463 is Grand Seiko’s flagship Spring Drive diver, offering maximum legibility, robust steel case construction, and a reliable Spring Drive movement. The high-contrast dial and durable bracelet make it a tool watch for challenging environments—and daily adventures.
Product Image
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Official Description
This professional diver’s watch is designed for ultimate reliability. Its Spring Drive movement ensures outstanding precision, while the robust steel case, one-way rotating bezel, and 200-meter water resistance make it ideal for diving and more.
Product Specifications
| Feature | Value |
|---|---|
| Model Number | SBGA463 |
| Series | Sport Collection |
| Case Material | Stainless steel |
| Case Diameter | 44.2 mm |
| Case Thickness | 14.0 mm |
| Lug Width | 21 mm |
| Lug-to-Lug | 50.0 mm |
| Crystal | Sapphire, AR coated |
| Bracelet/Strap | Stainless steel bracelet |
| Water Resistance | 200 meters (20 bar) |
| Magnetic Resistance | 4,800 A/m |
| Weight | 200g |
| Clasp | Three-fold clasp with push button |
| Caseback | Screw-down, solid |
Movement Details
| Specification | Value |
|---|---|
| Movement | Spring Drive, Caliber 9R65 |
| Type | Automatic with manual winding |
| Power Reserve | ~72 hours (3 days) |
| Accuracy | ±1 second per day / ±15 sec per month |
| Jewels | 30 |
| Features | Date, Power reserve indicator |
Frequently Asked Questions
Is the bezel ceramic or steel?
The bezel is robust stainless steel.
Can I wear it for professional diving?
It meets ISO diver standards, 200m water resistance, and has luminous hands/markers for visibility.
Does it have a sapphire crystal?
Yes, it uses an anti-reflective-coated sapphire glass.
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