Strength, precision and perfect legibility.
This quartz GMT creation combines form and function deliver the precision, durability and ease of use that are the hallmarks of Grand Seiko. The muscular steel case has a ceramic bezel whose hardness protects it from scratches and ensures its lasting beauty. The light blue of the GMT hand is mirrored in the dial ring to make it easy to read the 24 hour hand at a glance and the GMT hand is illuminated by a Lumibrite that emits a different color than that of the hour and minute hands and indexes, ensuring high legibility even in the dark. The twin pulse quartz caliber 9F86 delivers the high torque needed to keep the wide hands moving precisely and offers the wearer the convenience of being able to change the time zone without stopping the seconds hand.
|Exterior:||Stainless steel with ceramic bezel|
|Case back:||Screw case back|
|Glass Material:||Sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|LumiBrite:||Lumibrite on hands and index(es)|
|Case size:||Diameter 40.0mm Lug-to-lug 46.8mm Thickness 13.1mm|
|Clasp type:||Three-fold clasp with push button release|
|The perimeter of Band:||203mm|
|Caliber no.:||9F86 Instructions|
|Accuracy:||±10 seconds per year|
|Water resistance:||20 bar|
|Magnetic resistance:||Reinforced magnetic resistance equipped|
|Other details / Features:||
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Grand Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.