King Seiko SDKS017 – 6R55 “Automatic 3 Days” – 39 mm – Blue Dial – Steel Bracelet

This King Seiko SDKS017 carries the sharp, faceted KSK design with a deep blue sunburst dial and the “Automatic 3 Days” signature. Inside is Seiko’s 6R55 automatic (hand-wind + hack) with a strong ~72-hour power reserve. This piece is A-grade used—very clean with no obvious scratches; see photos for close-ups. • Reference: SDKS017 • Movement: Seiko 6R55 automatic, 21,600 vph; hand-wind/hack; ~72 h power reserve • Case: Stainless steel, 39 mm diameter (excl. crown) • 46.1 mm lug-to-lug • ~11.9 mm thick • Crystal: Sapphire • Dial: Blue sunburst; applied batons; date at 3 o’clock • Bracelet: Stainless-steel multi-link with folding clasp • Water resistance: 100 m (model spec; not pressure-tested by me) • Condition: Pre-owned A-grade – very nice overall, no deep marks