What are the case specifications of the Grand Seiko Heritage?

The Grand Seiko Heritage features a 40.2mm diameter, 13mm 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 9S85, 55h power reserve.

Grand Seiko Heritage

AutomaticSteel

Ref. SBGH205

Collection: HeritageCase size: 40.2mmMovement: 9S85

The Grand Seiko Heritage, reference SBGH205, has a steel case measuring 40.2 mm in diameter. The black dial has a radial pattern inspired by the ridged contours of Mount Iwate. Measuring 47.6 mm lug-to-lug, the case is 13 mm thick; water resistance is rated to 100 metres. Self-winding calibre 9S85 has 37 jewels and approximately 55 hours of power reserve. The watch has a date display and a see-through case back. A steel bracelet closes with a folding clasp with push button release. Above the dial is a dual-curved sapphire crystal, with anti-reflective coating on its inner surface.

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Last updated 9 Oct 2026Suggest a correction