Seiko SPB305: 40.2 mm case, 100 m water resistance.
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Specifications
Specifications from Creation Watches, last seen 2026-09-04.
Movement
- Movement
- Automatic
- Power reserve
- 45h
Case & crystal
- Case material
- Stainless steel
- Case diameter
- 40.2mm
- Case thickness
- 12.2mm
- Crystal
- Sapphire Crystal
Resistance
- Water resistance
- 100 m
Catalogue
- Family
- SPB
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| SPB305J1 | J1 | Japan | Stainless steel | Fold over clasp | — |