GRAND SEIKO
Evolution 9 Collection
RM45,400
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.
TECHNICAL DETAILS
Collection:
Evolution 9 Collection
Watch Type
Diver
Gender
Men
Dial Color
Green
Dial Shape
Round
Calibre
9RB1
Movement
Spring Drive, automatic
Movement - Power Reserve
Approx. 120 hours (5 days)
Water Resistant (Depth in meters)
200m / 660ft
Reference Number
SLGB-025G
Case Size
40.8mm
Case Height
12.9mm
Case Material
High-intensity titanium
Crystal
Sapphire crystal
Strap Material/Bracelet
Titanium
Lug Width
21mm
Buckle Type
Locking extension clasp with micro-adjustment
TECHNICAL DETAILS
Collection:
Evolution 9 Collection
Reference Number
SLGB-025G
Watch Type
Diver
Gender
Men
Dial Color
Green
Dial Shape
Round
Calibre
9RB1
Movement
Spring Drive, automatic
Movement - Power Reserve
Approx. 120 hours (5 days)
Water Resistant (Depth in meters)
200m / 660ft
Case Size
40.8mm
Case Height
12.9mm
Case Material
High-intensity titanium
Crystal
Sapphire crystal
Strap Material/Bracelet
Titanium
Buckle Type
Locking extension clasp with micro-adjustment
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* All prices are Grand Seiko’s suggested retail price inclusive of prevailing SST.
Grand Seiko Watch reserves the right to modify the prices and models on this website at any time.