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Home/Browse/Grand Seiko/STGK003
Grand Seiko STGK003 — STGK003J
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Grand Seiko STGK003

Ref. STGK003J
Dress
STGK003
SBGA211
SBGA293
SBGA375
SBGA384
SBGA385
SBGA413
SBGA427
SBGA469
SBGH263
SBGH281
SBGH341
SBGH347
SBGH349
SBGH368
SBGM245
SBGR299
SBGX359
SBGX363
STGK003
STGK007
STGK031
3 Variants
Buy from Grand Seiko ↗
Buy used on eBay ↗
Retail MSRP
$31,200
Low
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Avg
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High
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Alternatives
Case
28.7mm
Power Reserve
50h
Movement
Automatic
Water Resistance
100m
Crystal
Sapphire + AR
01

Case Dimensions

Diameter28.7mm
Thickness10.9mm
Lug-to-Lug35.1mm
Lug Width14mm
02

Case Build

MaterialGold
Water Resistance100m
03

Crystal & Dial

CrystalSapphire
AR CoatingYes
Dial ColorSTGK003J
04

Movement

Caliber
9S27
TypeAutomatic
Beat Rate—
Power Reserve50 hours
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleTextured
BezelFixed
Bracelet / strapLeather strap
HandsDauphine
AI-detected from product image · 5/22/2026
In a nutshell

The Grand Seiko STGK003 is an automatic dress watch, with a 28.7mm gold case, 10.9mm thick, powered by the 9S27 movement and a 50-hour power reserve. Water resistance is rated to 100m, under a sapphire crystal. Manufacturer MSRP is $31,200.

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