Grand Seiko Sport Spring Drive GMT Watch
Grand Seiko Sport Spring Drive GMT Watch
SKU: SBGE255
This compact Spring Drive sports model incorporates a zirconia ceramic bezel with a surface hardness which is around six times harder than stainless steel.
The Spring Drive movement, pioneered by Seiko Watch Corporation’s engineers, generates energy like a conventional mechanical watch – with a mainspring – but combines this with an electronic regulator to deliver a superior level of precision, never requiring a battery change.
In Spring Drive, the second-hand moves in perfect glide motion, reflecting the natural and continuous flow of time itself. It has a 72-hour power reserve, and a power reserve indicator on the bottom left of the dial.
Grand Seiko: beautifully, precise Japanese watchmaking, from the pinnacle of Seiko Watch Corporation’s in-house manufacture. Every Grand Seiko features signature high standards of Japanese precision, durability and legibility, handcrafted by Takumi artisans.
Movement
Accuracy:±15 seconds per month (±1 second per day)
Calibre:9R66
Movement Type:Spring Drive
Power Reserve:72 Hours
Watch Exterior
Case Diameter:40.5mm
Case Thickness:14.7mm
Case Material:Stainless Steel/Ceramic Bezel
Strap/Bracelet:Stainless Steel
Lug Width:20.0mm
Clasp:Three-fold clasp with push button release
Dial Colour:Blue
Other Specifications
Crystal Coating:Anti-reflective coating on inner surface
Crystal Type:Dual-curved sapphire crystal
Watch Function:GMT
Water Resistance:20 bar
Weight:172.0g
LumiBrite:Lumibrite on hands and indexes
The three movements at the heart of Grand Seiko
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9S Mechanical
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Grand Seiko’s expert watchmakers.
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9R Spring Drive
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.
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9F Quartz
The ultimate quartz movement. Caliber 9F incorporates several unique technologies that raise performance of quartz to the high standards of Grand Seiko.