Grand Seiko
SBGA481
Ref. SBGA481
The Grand Seiko SBGA481 is a flagship model from the Sport Collection, renowned for its proprietary **Caliber 9R65 Spring Drive** movement, offering ultra-smooth, silent second-hand motion with a 72-hour power reserve. Its **high-intensity titanium case** and **dual-curved sapphire crystal** with anti-reflective coating emphasize durability and clarity, while the **open caseback** showcases the intricate movement. A cult-favorite for its blend of precision engineering and Japanese craftsmanship, it’s designed for sporty yet discerning wearers.
crystalDual-curved sapphire with anti-reflective coating
braceletMetal bracelet (23mm width, extension clasp with folding lock)
movementCaliber 9R65 Spring Drive (Self-winding with manual-winding, Tri-synchro regulator, 30 jewels)
lug width50.0mm (lug-to-lug)
dial colorN/A (not specified in sources, but typically sporty/functional designs)
case diameter44.5mm
case materialHigh-intensity titanium
water resistance20 bar (~660 feet)
year2016-present
A registered Grand Seiko SBGA481 carries a permanent RGATT passport: origin, history and owners, verifiable by anyone, and a documented history makes a watch easier to sell.