Seiko SRE020: caliber 2R05, 30.3 mm case, 50 m water resistance.
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Specifications
Specifications from Seiko, Creation Watches, last seen 2026-09-22.
Movement
- Caliber
- 2R05 All 2R05 watches →
- Movement
- Automatic
- Power reserve
- 40h
- Jewels
- 21
Case & crystal
- Case material
- Stainless steel
- Case diameter
- 30.3mm
- Case thickness
- 10.9mm
- Lug to lug
- 37mm
- Lug width
- 14mm
- Crystal
- Box-shaped Hardlex
Resistance
- Water resistance
- 50 m
- Magnetic resistance
- 4,800 A/m
Catalogue
- Family
- SRE
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| SRE020J1 | J1 | Japan | Cow leather | Three-fold clasp with push button release | — |
