SpecStudio
Click to inspect
Grand Seiko STGK031
$6,600Stock unknown
Case
- Diameter
- 30mm
- Thickness
- 10.5mm
- Lug-to-lug
- 36.2mm
- Lug width
- 15mm
- Material
- Stainless Steel
- Water resistance
- 100m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Yes
Movement
- Caliber
- Grand Seiko 9S27
- Type
- Automatic
- Power reserve
- 50h
Design language
- Case shape
- round
- Dial style
- textured
- Bezel
- fixed
- Bracelet
- lug-attached
- Hands
- dauphine
AI-detected from the product image
STGK031 collection · 23 watches
2 colorways
The market
Market prices.
Retail$6,600
The forum market
Follow the asking price.
Active listings0Across watch forums
Closed · 90d0Asking-price history
No forum listings tracked for this watch yet. Market+ adds the weekly trend.
Retail stock & market context
Grand Seiko on the secondhand market
+7.5%
2026 so far · +4.0% to +12.1% · 41 matched watches
In line with the index
Dress watches as a group: +10.6% · 208 matched watches
Year-by-year readings →The connection engine
More like this.
The community take
Owners talk.
Grand Seiko STGK031 owners widely praise its elegant 30mm case and the subtle pink dial that shifts to appear white or silver in different lighting. The watch is seen as a refined, midsize option, with some owners appreciating its understated "stealth wealth" appeal and suitability for smaller wrists. One owner notes the crown lacks surrounding steel protection. Reviewers and owners alike criticize the STGK031 as overpriced for its movement, which has a 50-hour power reserve and accuracy of +8 to -3 seconds per day. Overall, owners rate the Grand Seiko STGK031 highly for its refined finishing and versatile dial at the 30mm size.
Open the discussion
On video
On real wrists
No shots yet. Show how it wears.
The paper trail
The discussion