Grand Seiko Heritage

The Grand Seiko Heritage, reference SBGW293, has a steel case measuring 36.5 mm in diameter. Manual-winding calibre 9S64 has 24 jewels and approximately 72 hours of power reserve. Measuring 42.7 mm lug-to-lug, the case is 11.6 mm thick; water resistance is rated to 100 metres; the watch has magnetic resistance; the lug width is 18 mm. A crocodile leather strap closes with a folding clasp with push button release. The movement has a precision of +5 to -3 seconds per day. Above the dial is a box-shaped sapphire crystal, with anti-reflective coating on its inner surface.