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Home/Browse/Grand Seiko/SLGB023
Grand Seiko SLGB023 — SLGB023G
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Grand Seiko SLGB023

Ref. SLGB023G
Diver

Owners and reviewers widely praise the Grand Seiko SLGB023 for its comfortable 40.8mm titanium case and the smooth winding feel of its Spring Drive 9RB1 movement. The dial's gradient blue "ushio" motif is a highlight, though some reviewers note the bezel's fully lumed scale as a missed opportunity. Enthusiasts are divided on the power reserve indicator's placement and the design of the hour and minute hands. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its comfortable titanium case and the refined Spring Drive movement.

Monochrome↗
WatchUSeek↗
SLGB023
SLGA001
SLGA009
SLGA015
SLGA019
SLGB001
SLGB003
SLGB005
SLGB006
SLGB023
SLGC001
SLGC006
SLGC009
SLGH005
SLGH017
SLGW003
SLGW004
SLGW005
SLGW007
2 Variants
Buy from Grand Seiko ↗
Buy used on eBay ↗
Retail MSRP
$12,400
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Buy from Grand Seiko
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Alternatives
Case
40.8mm
Power Reserve
72h
Movement
Spring Drive
Water Resistance
300m
Crystal
Sapphire + AR
01

Case Dimensions

Diameter40.8mm
Thickness12.9mm
Lug-to-Lug48.5mm
Lug Width21mm
02

Case Build

MaterialTitanium
Water Resistance300m
03

Crystal & Dial

CrystalSapphire
AR CoatingYes
Dial ColorSLGB023G
04

Movement

Caliber
9RB1
TypeSpring Drive
Beat Rate—
Power Reserve72 hours
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleTextured
Sub-dials1
BezelRotating (dive)
Bracelet / strapLug-attached bracelet
HandsDauphine
AI-detected from product image · 5/22/2026
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