The Wristwatch Field Guide

Grand Seiko Evolution 9 Spring Drive Diver 200m "Ushio" (SLGA023)

The Grand Seiko Evolution 9 Spring Drive Diver 200m "Ushio" (SLGA023) is a current-production diver watch with a high-intensity titanium case. It is priced well above the $1,199 median for the category. It ships on a matching exotic-material bracelet rather than a strap.

All Grand Seiko watchesExotic-material diver watchesTitaniumDiversDisplay back
Price
$9,600
Material
Titanium
Grade / type
High-Intensity Titanium
Water resistance
200 m
Type
Diver
Case diameter
43.8 mm
Origin
Japan
Movement
Spring Drive
Caliber
9RA5
Power reserve
120 h
Complications
Date, Power reserve
Colour
Grey
Surface treatment
None
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Titanium bracelet
Matching bracelet
Standard
Crystal
Sapphire
Display back
Yes
Dial
Blue (Ushio)
Dial colours
Blue
Lume
LumiBrite
Availability
Offered
Status
Current
Not published
Reference, Thickness, Lug-to-lug, Weight, Hardness, Construction, Caseback
Medium confidence Verified Jul 2026 Source: Grand Seiko (maker) / Monochrome
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Frequently asked questions

What is the case material of the Grand Seiko Evolution 9 Spring Drive Diver 200m "Ushio" (SLGA023)?

The Grand Seiko Evolution 9 Spring Drive Diver 200m "Ushio" (SLGA023) has a high-intensity titanium case. It is recorded at medium confidence pending a maker-stated material.

What size is the Grand Seiko Evolution 9 Spring Drive Diver 200m "Ushio" (SLGA023)?

It is 43.8 mm in diameter, and water resistant to 200 m.

How much does the Grand Seiko Evolution 9 Spring Drive Diver 200m "Ushio" (SLGA023) cost, and is it available?

It is current-production and lists from $9,600.

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