Why This Grand Seiko UFA Spring Drive is a Game Changer | SLGB003

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Grand Seiko’s Most Accurate Spring Drive Yet – SLGB003 “Ice Forest” ReviewGrand Seiko just released the SLGB003, featuring the groundbreaking Caliber 9RB2 Spring Drive with Ultra Fine Accuracy (U.F.A.), accurate to an incredible ±20 seconds per year. This is the most precise Spring Drive movement ever made — and it's packaged inside a beautifully compact 37mm high-intensity titanium case inspired by the Evolution 9 design language.
In this video, we take a closer look at the specs, finishing, dial texture, and what makes the SLGB003 a milestone in Grand Seiko’s pursuit of perfection.

📌 Specs at a Glance:• Caliber 9RB2 Spring Drive w/ Ultra Fine Accuracy (±20 sec/year)• 37mm high-intensity titanium case• "Ice Forest" textured pale blue dial• 72-hour power reserve• Date, power reserve indicator, exhibition caseback• Titanium bracelet with micro-adjust clasp• Water resistance: 100m• Magnetic resistance: 4,800 A/m

🧠 Why This Watch Matters:The SLGB003 sets a new benchmark for mechanical watch accuracy using Spring Drive tech. It’s also one of the smallest and most wearable GS Spring Drive models to date — blending technology, tradition, and elegance in a way only Grand Seiko can.

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