Grand Seiko SLGB023: caliber 9RB1, 40.8 mm case, 300 m diver's water resistance.
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Specifications
Specifications from Grand Seiko, last seen 2026-09-21.
Movement
- Caliber
- 9RB1
- Movement
- Spring Drive
- Power reserve
- 72h
Case & crystal
- Case material
- High-Intensity Titanium
- Case diameter
- 40.8mm
- Case thickness
- 12.9mm
- Lug to lug
- 48.5mm
- Lug width
- 21mm
- Crystal
- Sapphire crystal
Resistance
- Water resistance
- 300 m diver's
- Magnetic resistance
- 4,800 A/m
Catalogue
- Family
- SLGB
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| SLGB023G | G | — | — | Locking extension clasp with micro-adjustment | 122g |
