Grand Seiko SBGD228: caliber 9R01, 44.5 mm case, 100 m water resistance.
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Specifications
Specifications from Grand Seiko, last seen 2026-09-21.
Movement
- Caliber
- 9R01 All 9R01 watches →
- Movement
- Spring Drive
- Power reserve
- 192h
Case & crystal
- Case material
- 18k rose gold
- Case diameter
- 44.5mm
- Case thickness
- 14.4mm
- Lug to lug
- 52mm
- Lug width
- 23mm
- Crystal
- Dual-curved sapphire crystal
Resistance
- Water resistance
- 100 m
- Magnetic resistance
- 4,800 A/m
Catalogue
- Family
- SBGD
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| SBGD228J | J | Japan | Crocodile leather | Folding clasp with push button release | — |
