Seiko SRPG57: caliber 4R36, 42.4 mm case, 200 m diver's water resistance.
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Specifications
Specifications from Creation Watches, Seiko, last seen 2026-09-23.
Movement
- Caliber
- 4R36 All 4R36 watches →
- Movement
- Automatic
- Power reserve
- 41h
- Jewels
- 24
Case & crystal
- Case material
- Stainless steel
- Case diameter
- 42.4mm
- Case thickness
- 13.4mm
- Lug to lug
- 49.4mm
- Lug width
- 20mm
- Crystal
- Hardlex with magnified glass
Resistance
- Water resistance
- 200 m diver's
Catalogue
- Family
- SRPG
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| SRPG57J1 | J1 | Japan | Stainless steel | Fold over clasp | — |
| SRPG57K1 | K1 | International | Stainless steel | Three-fold clasp with secure lock, push button release with extender | 186g |
