Features:
Hours, minutes and central seconds
Power Reserve indicator on caseback
72 hour power reserve
Spring Drive Movement

Specifications:
Movement: Calibre 9R31
Driving system: 9R Manual Wind
Power Reserve: Approximately 72 hours
Accuracy Rate: ±1 second per day / ±15 seconds per month (average)
Water and magnetic resistance: 10 bar and 4800 A/m (60 gauss)

Material: Stainless steel case
Diameter: 40mm x 10.5mm x 46.2mm
Caseback: Transparent with Sapphire Crystal
Crystal: Sapphire crystal with anti-reflective coating

Dial: 
Design: White dial representing morning sky over Shinshu mountains
Hands: Zaratsu polished hands
Markers: Zaratsu polished markers

Band
Navy crocodile strap with three-fold clasp buckle

Warranty: 
Grand Seiko 5-Year International Warranty

Details:

The delicately textured white dial evokes Asaborake, the brief time when, as dawn breaks, the light penetrates the morning mist and begins to reveal the mountain landscape of Shinshu, where this, and all Grand Seiko Spring Drive watches, are made. The minute and seconds hands are gently curved by hand so that they are close to the indexes and minute track. This not only enhances the legibility of the time, which is measured with /- 15 seconds a month precision, but it also allows the wearer to enjoy to the full the continuous glide motion of the seconds hand that is Spring Drive’s signature.

As with the original 44GS, the glass is box-shaped to give the watch its traditional feel but the thickness of the glass rim is reduced to lower the overall center of gravity of the watch and to provide a slim profile and a comfortable fit on the wrist.

The hand-wound Caliber 9R31 delivers a 72-hour power reserve thanks to its Dual Spring Barrel mechanism in which two springs are set in parallel within one single barrel.