Grand Seiko SBGE255: caliber 9R66, 40.5 mm case, 200 m water resistance.
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Specifications
Specifications from Grand Seiko, last seen 2026-09-21.
Movement
- Caliber
- 9R66 All 9R66 watches →
- Movement
- Spring Drive
- Power reserve
- 72h
Case & crystal
- Case material
- Stainless steel with ceramic bezel
- Case diameter
- 40.5mm
- Case thickness
- 14.7mm
- Lug to lug
- 48.7mm
- Lug width
- 20mm
- Crystal
- Dual-curved sapphire crystal
Resistance
- Water resistance
- 200 m
- Magnetic resistance
- 4,800 A/m
Catalogue
- Family
- SBGE
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| SBGE255G | G | — | — | Folding clasp with push button release | 172g |
