Grand Seiko Sport Watch with Black Dial and Bezel, 40mm
Grand Seiko

Grand Seiko Sport Watch with Black Dial and Bezel, 40mm

SKU: NS277704
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Product Description

Equipped with a GMT hand, this watch features Grand Seiko’s unique Spring Drive caliber, which combines the motive force of a mainspring with the high precision of a quartz watch. Housed in a water-resistant stainless steel case with ceramic bezel, a 24-hour GMT hand and Lumibrite indices for exceptional precision and legibility complemented by the smooth motion glide of Spring Drive.


Case Material - Stainless steel with ceramic bezel

Glass Material - Dual-curved sapphire crystal

Glass Coating - Anti-reflective coating on inner surface

Case Size - Diameter 40.5mm x Thickness 14.7mm

Clasp type - Three-fold clasp with push button release


Caliber no. - 9R66

Movement Type - Spring Drive

Power reserve - Approx. 72 hours (3 days)

Accuracy - +/- 1 second per day / +/- 15 seconds per month (average)


Water resistance - 20 bar

Magnetic resistance - Equipped

Weight - 172.0 g

Other details / Features - 24-hour hand (dual time display function), 30 jewels, Calendar-linked time difference adjustment function, Case back with lion emblem, Date display, Power reserve display, Screw case back, Screw-down crown, Stop seconds hand function

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