Grand Seiko Heritage

The Grand Seiko Heritage, reference SBGH327, has a 39.5 mm steel case and is a limited edition of 168 pieces. Approximately 55 hours of power reserve is provided by self-winding calibre 9S85, with 37 jewels. The dial is covered by a dual-curved sapphire crystal with an inner anti-reflective coating. The steel bracelet has a folding clasp with push button release. This model has a date display and a see-through case back. The 13 mm case thickness accompanies a lug-to-lug measurement of 47.5 mm; water resistance is rated to 100 metres; the case surfaces receive Zaratsu polishing.