Grand Seiko Heritage

The Grand Seiko Heritage, reference SBGV239, has a steel case measuring 40 mm in diameter. Case thickness is 10.4 mm, with a lug-to-lug measurement of 46.2 mm; water resistance is rated to 100 metres. Timekeeping is provided by quartz calibre 9F82, which operates with a precision of ±10 seconds per year. This model has a date display; a folding clasp with push button release closes the steel bracelet. Twelve multifaceted hour markers accompany the case’s mirror and hairline finishes. The dial is covered by a dual-curved sapphire crystal with an inner anti-reflective coating.