Evolution 9 Collection
SLGB025
$15,500.00 (GST-included)
Please contact us regarding the availability of items in our online boutique or if you wish to make a purchase
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5-Year Warranty -
Free Gift Wrapping
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Free Delivery in Singapore
Product Description
In 2025, Grand Seiko unveiled the Spring Drive Caliber 9RB2, a groundbreaking movement that received the then-new U.F.A. designation, standing for “Ultra Fine Accuracy.” Boasting an annual accuracy rate of ±20 seconds, Caliber 9RB2 earned the distinction of being the most accurate wristwatch movement powered by a mainspring.* This model is powered by Caliber 9RB1, featuring an improved construction that makes it ideal for sporting conditions while sharing the same attributes as the Caliber 9RB2.
The term ushio, which means “tide” in Japanese, evokes the waters that surround the Japanese archipelago. The green dial draws from the tranquil beauty of shallow coastal waters near the shore.
* As of April 2026, based on Grand Seiko’s research.
Specification
Exterior
| Exterior: | High-Intensity Titanium |
| Glass Material: | Sapphire crystal |
| Glass Coating: | Anti-reflective coating on inner surface |
| Lumibrite: | LumiBrite on hands, index(es) and bezel |
| Case Size: | Diameter 40.8mm Lug-to-lug 48.5mm Thickness 12.9mm |
| Band Width: | 21mm |
| Clasp Type: | Locking extension clasp with micro-adjustment |
| Perimeter of Band: | 195mm |
| Weight: | 122 g |
Movement
| Movement: | Spring Drive |
| Caliber: | 9RB1 |
| Power Reserve: | Approx. 72 hours(3 days) |
| Accuracy: | ±20 seconds per year (±3 seconds per month) |
Functions
| Water Resistance: | 300m / 1000ft Diver's |
| Magnetic Resistance: | 4,800 A/m |
| Other details / Features: |
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After-sales Service
Grand Seiko's after-sales service is carried out by specialized repair technicians to ensure that customers can use their watches with peace of mind.
Watch Care
Please see the care instructions to ensure you can enjoy your Grand Seiko for many years to come.
Size Guide
When placing your order, please refer to the instructions on how to measure your wrist size so that we can deliver a size that fits your wrist perfectly.