Grand Seiko Spring Drive U.F.A. Ushio 300 Diver (SLGB023, blue)

The Grand Seiko Spring Drive U.F.A. Ushio 300 Diver (SLGB023, blue) 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.

4 official photos · reader photos welcome

Price

$12,400

Material

Titanium

Grade / type

High-Intensity Titanium

Water resistance

300 m

Type

Diver

Case diameter

40.8 mm

Thickness

12.9 mm

Origin

Japan

Movement

Spring Drive U.F.A.

Caliber

9RB1

Power reserve

72 h

Complications

Date

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, Lug-to-lug, Weight, Hardness, Construction, Caseback

Medium confidence Verified Jul 2026 Source: Grand Seiko (maker) / Watches by SJX

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