Overview
The SBGN003 is Grand Seiko’s modern “Quartz GMT,” designed for frequent travelers. With its blue-and-red “Pepsi” style 24-hour bezel and high-accuracy 9F86 movement, it’s a tough, sporty, and highly practical dual-time watch.
Product Image
Image copyright Grand Seiko
Official Description
SBGN003 offers high-visibility dual timekeeping with a contrasting 24-hour blue/red bezel, independent local hour adjustment, and crisp quartz precision. Rugged and functional, it’s ideal for world travelers and anyone who values no-nonsense reliability.
Product Specifications
| Feature | Value |
|---|---|
| Model Number | SBGN003 |
| Series | Sport Collection |
| Case Material | Stainless steel |
| Case Diameter | 39.0 mm |
| Case Thickness | 12.1 mm |
| Lug Width | 19 mm |
| Lug-to-Lug | 45.9 mm |
| Crystal | Sapphire, AR coated |
| Bracelet/Strap | Stainless steel bracelet |
| Water Resistance | 100 meters (10 bar) |
| Magnetic Resistance | 4,800 A/m |
| Weight | 142g |
| Clasp | Three-fold clasp with push button |
| Caseback | Screw caseback |
Movement Details
| Specification | Value |
|---|---|
| Movement | Quartz GMT, Caliber 9F86 |
| Type | Quartz, independently adjustable local hour |
| Power Reserve | Battery life approx. 3 years |
| Accuracy | ±10 seconds per year |
| Jewels | 9 |
| Features | GMT (true traveler), date, anti-magnetic |
Frequently Asked Questions
Is this a “true GMT”?
Yes, the local hour hand adjusts independently for travel, without stopping the minutes/seconds.
Does the bezel rotate?
No; the blue/red bezel is fixed, intended for easy day/night distinction.
Is the date instant-change?
Yes, thanks to the 9F family’s special date mechanism.
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