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Grand Seiko SBGE307
$11,500Stock unknown
Case
- Diameter
- 44.5mm
- Thickness
- 14.9mm
- Lug-to-lug
- 50mm
- Lug width
- 23mm
- Material
- Titanium
- Water resistance
- 200m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Yes
Movement
- Caliber
- Grand Seiko 9R66
- Type
- Spring Drive
- Power reserve
- 72h
Design language
- Case shape
- round
- Dial style
- textured
- Sub-dials
- 1
- Bezel
- gmt
- Bracelet
- lug-attached
- Hands
- baton
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The market
Market prices.
Retail$11,500
eBay listings
- SEIKO Grand Seiko Spring Drive GMT 44.5mm Sports Collection SBGE307/9R66-0BT...Pre-owned - Excellent · JP$7,291
- Grand Seiko Sport Collection Spring Drive GMT SBGE307 second hand mensPre-owned - Good · JP$7,307
- Seiko Grand Seiko Sports Collection SBGE307/9R66-0BT0 TO313298Pre-owned - Good · JP$8,280
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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.
The Grand Seiko SBGE307 features a textured ivory-white dial designed to resemble a lion's mane, with faceted hour markers and Lumibrite. Its 44.5mm hardened titanium case exhibits an aggressive, angular design with claw-shaped lugs, a combination of Zaratsu polishing and hairline finishing, and a brownish-red GMT hand as an accent. The Spring Drive GMT movement offers accuracy of ±1 second per day and a 72-hour power reserve. On balance, reviewers praise the Grand Seiko SBGE307 for its distinctive dial texture and the striking contrast between polished and brushed finishes on its angular titanium case.
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