Seiko SDKS031: caliber 6R51, 36.1 mm case, 100 m water resistance.
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Specifications
Specifications from Seiko, last seen 2026-09-21.
Movement
- Caliber
- 6R51 All 6R51 watches →
- Movement
- Automatic
- Power reserve
- 72h
- Jewels
- 24
Case & crystal
- Case material
- Stainless steel
- Case diameter
- 36.1mm
- Case thickness
- 11.6mm
- Lug to lug
- 43mm
- Crystal
- Box shaped sapphire crystal
Resistance
- Water resistance
- 100 m
- Magnetic resistance
- Antimagnetic
Catalogue
- Family
- SDKS
