Located in Houston TX - 980$ shipped US or international. Stunning and all-original Grand Seiko 6155-8000 featuring the rare 6155 “Special” Hi-Beat movement—adjusted to a higher standard than standard 61GS calibers. This example showcases Grand Seiko’s hallmark Grammar of Design case profile with sharp lines and a mirror-polished finish, unpolished with original brushing intact. Dial: Original silver sunburst dial in overall clean condition. There is some light aging or toning . All printing is sharp and intact. Case: Original stainless steel 6155-8000 case in very good unpolished condition with well-defined lugs and intact brushing on the sides. Minor surface marks consistent with age. Crown features the correct vintage GS logo. Crystal: Hardlex crystal with some light scratches visible in angled light, consistent with vintage use. No major chips or cracks. Movement: Seiko 6155 Hi-Beat “Special” automatic movement (36,000 bph) running strong. Date function operating correctly via quickset. Keeping excellent time, tested on timegraph. Caseback: Original caseback with crisp reference and serial engraving. Gold GS medallion is present and in excellent shape. ⸻ Specifications: • Reference: 6155-8000 • Movement: Seiko 6155 Hi-Beat Automatic, “Special” regulated • Diameter: 36.5mm (excluding crown) • Lug Width: 18mm • Case Material: Stainless Steel • Crystal: Hardlex • Year: 1971 (Serial: 144129) • Strap: Black leather strap (aftermarket)