Grand Seiko Heritage Collection

The Hi-Beat calibre inside this Grand Seiko oscillates at 36,000 vibrations per hour — ten beats a second — which buys resistance to positional error and a smoother sweep than a conventional movement delivers. Building a movement that runs that fast without sacrificing longevity is genuinely difficult. Around it sits a 40mm steel case Zaratsu-polished by hand, with diamond-cut indexes applied individually and aligned by eye.

Reference: SBGH271G
Movement: Automatic Hi-Beat 36000, calibre 9S85
Power reserve: approx. 55 hours
Case: Stainless steel, 40 mm, Zaratsu polished
Water resistance: 100 m
Year: 2026 — Full set