What are the case specifications of the Grand Seiko Heritage?

The Grand Seiko Heritage features a 40mm diameter, 14mm thick, Steel case with a sapphire crystal crystal.

What is the water resistance of the Grand Seiko Heritage?

The Grand Seiko Heritage has a water resistance rating of 100m (swimming).

What movement does the Grand Seiko Heritage use?

The Grand Seiko Heritage is powered by a Automatic, caliber 9S86, 55h power reserve.

Grand Seiko Heritage

AutomaticSteel

Ref. SBGJ285

Collection: HeritageCase size: 40mmMovement: 9S86

The Grand Seiko Heritage, reference SBGJ285, is a GMT watch with a 40 mm steel case. This is a limited edition of 180 pieces. The case measures 14 mm thick and 46.2 mm lug-to-lug, with a water-resistance rating of 100 metres. Self-winding calibre 9S86 has 37 jewels and approximately 55 hours of power reserve. A dual-curved sapphire crystal has an anti-reflective coating on the inner surface. A steel bracelet closes with a folding clasp with push button release. A date display accompanies the dial, and the watch has a see-through case back.

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Last updated 9 Oct 2026Suggest a correction