Grand Seiko Heritage

The Grand Seiko Heritage, reference STGF286, has a steel case measuring 26 mm in diameter and is set with diamonds. The 9.2 mm case thickness accompanies a lug-to-lug measurement of 32.5 mm; water resistance is rated to 100 metres. Timekeeping is provided by quartz calibre 4J52, which operates with a precision of ±10 seconds per year. The mother-of-pearl dial is covered by a dual-curved sapphire crystal with an inner anti-reflective coating. The clasp is a folding clasp with push button release. This model has a date display; the watch has magnetic resistance.