Grand Seiko Heritage Collection SBGH301G
With its screw-down crown, one-way rotating bezel and water resistant to a depth of 100 meters, this watch provides all the security and legibility that the diver requires. It also offers the precision and durability of Grand Seiko's divers' high-beat movement, Caliber 9S85.
The unique design, whose primary feature is a polished, undistorted surface, reverberates with a black dial that makes a cool impression, giving rise to an infinite expressiveness that weaves together light and shadow in an aesthetic sense that the Japanese have appreciated since ancient times.
The movement is the Hi-Beat Caliber 9S85, which beats 10 times per second and grants more stable precision through resistance to interference and maintaining consistent accuracy.
|Exterior:||Ever brilliant steel|
|Case back:||See-through & Screw case back|
|Glass Material:||Dual-curved sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|LumiBrite:||LumiBrite on hands, indexes and bezel|
|Case size:||Diameter 40.0mm Lug-to-lug 46.2mm Thickness 13.3mm|
|Clasp type:||Three-fold clasp with secure lock & push button release, solid & slide adjuster|
|The perimeter of Band:||190mm|
|Movement Type:||Automatic with manual winding|
|Power reserve:||Approx. 55 hours|
|Mean daily rate:||+5 to -3 seconds per day|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||