Seiko SRPF77: caliber 4R36, 45 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 (Bezel: Stainless steel with ceramic display)
- Case diameter
- 45mm
- Case thickness
- 13.2mm
- Lug to lug
- 47.7mm
- Lug width
- 22mm
- Crystal
- Sapphire crystal with magnifier
Resistance
- Water resistance
- 200 m diver's
Catalogue
- Family
- SRPF
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Variants Same watch, different market or bracelet
| Reference | Edition | Region | Band | Clasp | Weight |
|---|---|---|---|---|---|
| SRPF77J1 | J1 | Japan | Silicone | Pin buckle | — |
| SRPF77K1 | K1 | International | Silicone | Pin buckle | 128g |
