Grand Seiko - Ref

Grand Seiko Spring Drive GMT – Ref. SBGE005 - 100% fully refurbished at Seiko’s official flagship service studio in Tokyo (Seiko Time Lab / Wako) Overview Up for auction is a magnificent Grand Seiko Spring Drive GMT (Ref. SBGE005) in pristine, mint condition. This piece represents the pinnacle of high-end Japanese watchmaking, combining the silky sweep of Grand Seiko’s proprietary Spring Drive movement with dual-time GMT functionality. This watch has been 100% fully refurbished at Seiko’s official flagship service studio in Tokyo (Seiko Time Lab / Wako) and has never been worn since the complete service. Mechanically and aesthetically, it is presented in like-new condition. Key Features & Highlights 100% Factory Refurbished: Complete overhaul (Complete Service) executed by Seiko Time Lab Tokyo, including full movement disassembly, cleaning, lubrication, regulation, new gaskets, and Zaratsu light case polishing. Condition: Unworn since full service. The deployant clasp retains its factory protective film. Strap & Buckle: Brand new original Grand Seiko alligator leather strap paired with the original GS stainless steel folding buckle. Dial: Sunburst champagne/silver dial with Zaratsu-polished hands and index markers, blue GMT hand, date aperture at 3 o'clock, and power reserve indicator. Full Collector Set: Includes original Grand Seiko inner/outer boxes, guarantee paper, instruction manuals, maintenance handbook, and official 2025/2026 Seiko service report & invoice documentation. Technical Specifications Feature Specification Brand Grand Seiko Model Spring Drive GMT Reference SBGE005 / Case Ref. 9R66-0AC0 Movement Caliber 9R66 Spring Drive (Automatic, 30 Jewels) Power Reserve Approx. 72 Hours (3 Days) Functions Hours, Minutes, Seconds, Date, GMT (Dual Time Zone), Power Reserve Indicator Case Material Stainless Steel (Zaratsu Polished) Water Resistance 10 Bar (100 m / 330 ft) Crystal Dual-curved Sapphire Crystal with Anti-Reflective Coating Dimensions Case Diameter: 41 mm (excluding crown) Lug-to-Lug: 48.6 mm Thickness: 14.1 mm Lug Width: 20 mm Production & Service History Production Date: November 2013 (Decoded via Serial No. 3N0036) Service Date: Complete refurbishment performed at Tokyo Seiko Time Lab. Shipment & Delivery The watch will be packed with extreme care and shipped fully insured with tracking via express courier.

Estimate:$4,944.35

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