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Home/Browse/Grand Seiko/SBGA427
Grand Seiko SBGA427 — SBGA427G
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Grand Seiko SBGA427

Ref. SBGA427G
Dress

Grand Seiko SBGA427 owners widely praise its extensive Zaratsu polishing and the "hall of mirrors" effect created by its diamond-cut indexes, complemented by a subtle, reeded dial and a striking green seconds hand. The 39mm case is noted for its comfortable, tapered bracelet, and the 9R65 Spring Drive movement is visible through the caseback. Some owners report the highly polished Zaratsu finish is prone to scuffs and scratches, with one mentioning a scratch near 1 o'clock. The Grand Seiko SBGA427 sold for $3750. Overall, owners rate the Grand Seiko SBGA427 highly for its exceptional finishing and the unique visual appeal of its dial and indexes.

WatchUSeek·3↗
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2 Variants
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Retail MSRP
$5,800
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Alternatives
Case
39mm
Power Reserve
72h
Movement
Spring Drive
Water Resistance
100m
Crystal
Sapphire + AR
01

Case Dimensions

Diameter39mm
Thickness12.3mm
Lug-to-Lug46.8mm
Lug Width19mm
02

Case Build

MaterialStainless Steel
Water Resistance100m
03

Crystal & Dial

CrystalSapphire
AR CoatingYes
Dial ColorSBGA427G
04

Movement

Caliber
9R65
TypeSpring Drive
Beat Rate—
Power Reserve72 hours
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

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