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Grand Seiko SLGB023
$12,400Stock unknown
Case
- Diameter
- 40.8mm
- Thickness
- 12.9mm
- Lug-to-lug
- 48.5mm
- Lug width
- 21mm
- Material
- Titanium
- Water resistance
- 300m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Yes
Movement
- Caliber
- Grand Seiko 9RB1
- Type
- Spring Drive
- Power reserve
- 72h
Design language
- Case shape
- round
- Dial style
- textured
- Sub-dials
- 1
- Bezel
- rotating
- Bracelet
- lug-attached
- Hands
- dauphine
AI-detected from the product image
SLGB023 collection · 18 watches
2 colorways
The market
Market prices.
Retail$12,400
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Active listings0Across watch forums
Closed · 30d1Asking-price history
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Retail stock & market context
Grand Seiko on the secondhand market
+7.6%
2026 so far · +4.0% to +12.2% · 41 matched watches
In line with the index
Divers as a group: +6.5% · 340 matched watches
Year-by-year readings →The connection engine
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The community take
Owners talk.
Grand Seiko SLGB023 owners and reviewers widely praise its 40.8mm High-Intensity Titanium case, comfortable wearability, and the striking Ushio tide-inspired blue dial. The Spring Drive 9RB1 movement is celebrated for its exceptional accuracy, rated at ±20 seconds per year. Some owners find the power reserve indicator and hour/minute hand designs less appealing. One reviewer noted the bezel's fully lumed scale as a missed opportunity, while another found the 43.8mm case size (likely referring to a different variant) on the larger side, though titanium mitigates this. The quick-adjust clasp is lauded for its functionality and ability to balance the watch head. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its stunning dial and precise Spring Drive movement at its price point.
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