SpecStudio
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Grand Seiko SBGM221
$5,400Stock unknown
Case
- Diameter
- 39.5mm
- Thickness
- 13.7mm
- Lug-to-lug
- 46.9mm
- Lug width
- 19mm
- Material
- Stainless Steel
- Water resistance
- 30m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Yes
Movement
- Caliber
- Grand Seiko 9S66
- Type
- Automatic
- Power reserve
- 72h
Design language
- Case shape
- round
- Dial style
- matte
- Bezel
- fixed
- Bracelet
- leather
- Hands
- dauphine
AI-detected from the product image
SBGM221 collection · 22 watches
3 colorways
The market
Market prices.
Retail$5,400
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Active listings10Across watch forums
Closed · 30d6Asking-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
GMT watches as a group: +7.6% · 103 matched watches
Year-by-year readings →The connection engine
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The community take
Owners talk.
Owners and reviewers widely praise the Grand Seiko SBGM221 for its exceptional dial and case finishing, noting the highly polished hands, blued GMT hand, and multi-faceted indices. The compact 39.5mm case and comfortable design are frequently highlighted, alongside the reliable in-house 9S66 automatic movement with a 72-hour power reserve and true GMT functionality. Some enthusiasts desire a bidirectional 24-hour bezel, and a non-standard 19mm lug width is noted as a consideration for strap changes. Overall, owners and reviewers rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant GMT functionality in a compact package.
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