Spring Drive GMT

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.

Guarantee: Five-year transferable guarantee with no registration or periodic maintenance checks required

Case: 40.5mm stainless steel case with Zaratsu polished finish

Movement: Automatic Spring-Drive movement, Calibre 9R66. ±15 seconds per month (±1 second per day)

Power Reserve: 72 hours (3 days)

Winding Crown: Stainless steel with the Grand Seiko logo in relief

Waterproofness: 200m water resistant

Bezel: Blue ceramic fixed 24 hour bezel

Dial: Blue

Crystal: Sapphire crystal

Bracelet: Stainless steel, 3-link