Blue dial Spring Drive Ushio 300 Diver on a stainless steel bracelet
Close-up of blue dial Spring Drive Ushio 300 Diver on a stainless steel bracelet
Wrist shot of Spring Drive Ushio 300 Diver with blue dial on a stainless steel bracelet
Grand Seiko SLGB023 Spring Drive Ushio 300 Diver on stainless steel bracelet with blue textured dial and blue bezel
Close up of the blue wave dial with Grand Seiko logo, bold hands, and Spring Drive UFA Diver's 300m text
Macro shot of the blue dial featuring Grand Seiko logo and Spring Drive UFA text with luminous markers
Grand Seiko Ushio 300 Diver blue on bracelet with luminous markers and rotating bezel
Grand Seiko Ushio 300 Diver with stainless steel bracelet blue dial and blue bezel
Titanium case back of Grand Seiko Ushio 300 Diver with crest engraving
Close up of brushed stainless steel bracelet with deployment clasp for the Ushio 300 Diver watch

Authorized Dealer. Grand Seiko official 5 year warranty included

Grand Seiko

SLGB023 Spring Drive UFA Ushio 300 Diver 40.8mm - Blue on Bracelet

$12,400
Grand Seiko
$12,400

SLGB023 Spring Drive UFA Ushio 300 Diver 40.8mm - Blue on Bracelet

The Details

  • 40.8 mm

    Case Size

  • 12.9 mm

    Case Height

  • 48.5 mm

    Lug to Lug

  • 300m

    Water Resistance

Overview

Case Height

12.9 mm

Case Size

40.8 mm

Collection

Evolution 9

Style

Diver

Lug to Lug

48.5 mm

Lug Width

21 mm

Movement

Automatic

Reference

SLGB023

Release Date

2026-04-13

Water Resistance

300m

Case

Bezel

Unidirectional rotating bezel

Caseback

Screwed, High-Intensity Titanium

Case Material

High-intensity Titanium

Clasp / Buckle

Locking extension clasp with micro-adjustment

Crown

Screw-down

Crystal

Sapphire with anti-reflective coating on inner surface

Dial Color

Blue

Dial Features

Blue with gradation, textured wave-like pattern, and optical multilayer coating

Lume

LumiBrite on hands, indexes and bezel

Strap / Bracelet Material

High-intensity titanium bracelet

Movement

Accuracy

Annual rate of ±20 seconds (equivalent to monthly rate of ±3 seconds. daily rate of ±0.3 seconds)

Caliber

9RB1

Features

Magnetic Resistance: 4,800 A/m

Functions

Time, power reserve indicator

Jewels

33 Jewels

Movement

Automatic Spring Drive

Power Reserve

72 Hours

Complication

Power Reserve

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About Grand Seiko

The Nature Of Time

Beginning with just a single model back in 1960, Grand Seiko has a long-established history of eye-catching elegant design, best-in-class finishing, and industry-shaking movement technology. One of the only vertically integrated watchmakers on the market, Grand Seiko upholds true Japanese engineering excellence with every crafted piece, down to growing its own sapphire crystals to protect the stunning dials.

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