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Grand Seiko SBGN027
$3,700Stock unknown
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Case
- Diameter
- 39mm
- Thickness
- 12.3mm
- Lug-to-lug
- 45.9mm
- Lug width
- 19mm
- Material
- Stainless Steel
- Water resistance
- 200m
Crystal & dial
- AR coating
- Yes
Movement
- Caliber
- Grand Seiko 9F86
- Type
- Quartz
Design language
- Case shape
- round
- Dial style
- sunburst
- Bezel
- gmt
- Bracelet
- lug-attached
- Hands
- baton
AI-detected from the product image
2 colorways
Market
Retail$3,700
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Active listings2Across watch forums
Closed · 90d0Asking-price history
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Retail stock & market context
Grand Seiko on the secondhand market
+8.6%
2026 so far · +5.2% to +12.0% · 44 matched watches
In line with the index
GMT watches as a group: +7.9% · 111 matched watches
Year-by-year readings →Similar watches
Community
Grand Seiko SBGN027 owners widely praise its compact 39mm size, Zaratsu polishing, and true GMT complication from its HAQ 9F86 quartz movement, noting its excellent accuracy of +/- 10 seconds per year. The watch is also lauded for its thin profile, grab-and-go suitability, and attractive "jewelry look." However, some users report issues such as limited lume, a GMT hand that can be mistaken for the minute hand, and a bezel index that disappeared on one example after a few months. The bracelet's lack of micro-adjustments is a recurring point of annoyance, and some find the design too plain or dress-casual. Overall, owners rate the Grand Seiko SBGN027 highly for its exceptional finishing and accurate HAQ GMT movement in a versatile, compact package.
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