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Grand Seiko
Grand Seiko Heritage Katana Black Dial US Exclusive Stainless Steel Watch | 40mm | SBGA489
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Description
The Japanese sword, known as the katana, is a world-renowned masterpiece in steel. Crafted through a distinctive and sophisticated process, the katana has created fascination and allure the world over. Derived from nature and brought together through expert craftsmanship, the katana is made from earth, fire, water, and air. Iron sand is drawn from the earth and then heated in a furnace known as a tatara. The melted sand forms the Japanese steel, known as tamagahane. From this Japanese steel, two variations can be found. The first is the high-carbon steel used for the outer sharp edge, or kawagane, and the second is the strong inner core of the blade, or shingane. Grand Seiko honors the katana and kawagane with the U.S.-exclusive SBGA489.
Polishing the katana requires handcraft of tremendous skill and dexterity, and the same can be said of crafting Grand Seiko watches using the Zaratsu polishing method, particularly the 44GS case design, which established the Grand Seiko style in 1967.
The hardness and beauty of kawagane inspires the black dial of SBGA489, whose dial pattern evokes the unique texture in the variations of tamahagane, the “jewel” steel from which traditional katana swords are fashioned.
Caliber 9R65 uses sophisticated modern technology coupled with the skilled hand of a master craftsman for the finest adjustments and highest precision possible, highlighting the seamless passage of time with a Spring Drive movement.
Exterior:Case Material: Stainless steel Glass Material: Dual-curved sapphire crystal Glass Coating: Anti-reflective coating on inner surface Case size: Diameter 40.0mm Lug-to-lug 46.2mm Thickness 12.5mm Band width: 19mm Clasp type: Three-fold clasp with push button release
Movement:Caliber No: 9R65 Movement Type: Spring Drive Power reserve: Approx. 72 hours(3 days) Accuracy: ±15 second per day / ±1 seconds per month (average)
Features:Water resistance: 10 bar Magnetic resistance: 4,800 A/m 30 jewels Screw-down crown Power reserve indicator Grand Seiko Style #: SBGA489
Polishing the katana requires handcraft of tremendous skill and dexterity, and the same can be said of crafting Grand Seiko watches using the Zaratsu polishing method, particularly the 44GS case design, which established the Grand Seiko style in 1967.
The hardness and beauty of kawagane inspires the black dial of SBGA489, whose dial pattern evokes the unique texture in the variations of tamahagane, the “jewel” steel from which traditional katana swords are fashioned.
Caliber 9R65 uses sophisticated modern technology coupled with the skilled hand of a master craftsman for the finest adjustments and highest precision possible, highlighting the seamless passage of time with a Spring Drive movement.
Exterior:
Movement:
Features:
Specifications
Watch Information
- Available Status: Purchase Online
- Band Materials: Stainless Steel
- Case Sizes: Large (40mm - 44mm)
- Case Shapes: Round
- Display: Analog
- Movements: Automatic
- Watch Styles: Casual
- Dial Color: Black
- Diameter: 40 mm
- Features: Water Resistant, Calendar/Date, Screw-Down Crown
- Watch Type: Bracelet
Sizing Guide
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