Grand Seiko Heritage Collection SBGV223
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The Grand Seiko Heritage Collection SBGV223 enlarges the brand's standard quartz dress design to a 40 mm steel case, giving the applied indexes and dauphine hands on its black dial more room without changing the line's low, 10 mm profile. It runs caliber 9F82, part of the 9F family Seiko introduced in 1993 to prove that quartz could carry Grand Seiko's own accuracy and finishing standards rather than a generic movement: a twin pulse control motor drives the oversized hands with two stepped signals per second instead of one, and a backlash auto-adjust mechanism, a hairspring-loaded gear riding the train, removes the seconds-hand shudder that ordinary quartz calibers show under magnification. (GS9 Club) The result is rated to ±10 seconds a year, backed by a sapphire crystal with inner anti-reflective coating, a screw case back stamped with the Seiko lion, and resistance to 4,800 A/m and 100 metres. (Grand Seiko)
Appearances
| Title | Year | Type | Actor | Character |
|---|---|---|---|---|
| May Your Misery Exceed Mine (2024) | 2024 | TV Series | Toshiki Seto | Shinichi Natori |