Grand Seiko Heritage

The Grand Seiko Heritage, reference STGF334, has a titanium case measuring 26 mm in diameter and is set with diamonds. Timekeeping is provided by quartz calibre 4J52, which operates with a precision of ±10 seconds per year. The watch has a date display; magnetic resistance is 4,800 A/m. Measuring 32.5 mm lug-to-lug, the case is 9 mm thick; water resistance is rated to 100 metres; the lug width is 13 mm. The clasp is a folding clasp with push button release. Above the mother-of-pearl dial is a dual-curved sapphire crystal, with anti-reflective coating on its inner surface.