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
Lumi Brite :Lumibrite on hands and indexes
Case size :Diameter 40.5mm × Thickness 14.7mm
Clasp type :Three-fold clasp with push button release
Movement Type :Spring Drive
Power reserve :Approx. 72 hours(3 days)
Accuracy :±1 second per day / ±15 seconds per month (average)
Water resistance :20 barMagnetic resistance :EquippedWeight :172.0 gOther details / Features :