Grand Seiko Sport Watch with Black Dial, 44mm
Grand Seiko

Grand Seiko Sport Watch with Black Dial, 44mm

SKU: NS302431
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Product Description

All Grand Seiko Spring Drive timepieces are designed, made, assembled and adjusted by the skilled craftsmen and women of the Shinshu Watch Studio, which is located in central Japan and surrounded by the Hotaka mountain range whose tallest summit is 3,190 metres high. As the Hotaka mountain range was created by volcanic activity, its peaks and slopes have sharp ridges and sheer cliffs which, even when carved by the wind and snow over the millennia, reveal nature at its most dramatic. This watch’s dial has the color and texture that typify the geology of the Hotaka range.

Thanks to Grand Seiko’s unique Spring Drive caliber, the seconds hand glides silently and smoothly, with no ‘tick’, across the dial, perfectly reflecting the natural and continuous flow of time. The power reserve is 72 hours when fully wound and is shown on the discreet indicator next to the eight o’clock marker. The GMT hand allows a second time zone to be shown and the hour can be adjusted without compromising the one-second-a-day precision of Spring Drive.

Reference Number - SBGE277


Case Material - Stainless Steel, Caseback: Stainless Steel and sapphire crystal

Case Back - Screw case back

Glass Material - Dual-curved sapphire crystal

Glass Coating - Anti-reflective coating on inner surface

Lumibrite - LumiBrite on hands, index(es) and bezel

Case Size - Diameter 44mm, Lug-to-Lug 50.8mm, Thickness 14.7mm

The Perimeter of Band - 194mm

Band Width - 21mm

Clasp type - Three-fold clasp with push button release


Caliber no. - 9R66

Movement Type - Spring Drive

Power Reserve - Approx. 72 hours

Mean Daily Rate - +15 seconds per month


Water Resistance - 20 bar

Magnetic resistance - 4,800 A/m

Other details / Features - Rotating bezel, screw-down crown, 30 jewels, 24-hour hand (dual time display function), power reserve indicator, calendar-linked time difference adjustment function

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