A Spring Drive Limited Edition to commemorate the 20th anniversary of Grand Seiko’s first GMT watch.
Grand Seiko's first GMT watch was created in 2002 and this watch celebrates its 20th anniversary. In performance and design, it has special qualities that recognize the significance of this landmark in Grand Seiko’s history.
It is powered by a specially adjusted movement, Caliber 9R16, which offers an enhanced precision rate of ±10 seconds per month. The Grand Seiko lion emblem is featured in 18K yellow gold on the oscillating weight. The dial has the rugged texture of the snow surface that can be seen in the high mountains that surround the Shinshu Watch Studio in central Japan in late winter and early spring. When the daytime temperatures start to rise and the annual thaw begins, the wind carves a unique pattern as it whips across the melting snow drifts. This ephemeral and beautiful effect is captured on the dial.
|Exterior:||Stainless steel, Caseback:Stainless steel and sapphire crystal|
|Case back:||See-through & Screw case back|
|Glass Material:||Dual-curved sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|LumiBrite:||LumiBrite on hands, index(es) and bezel|
|Case size:||Diameter 44.0mm Lug-to-lug 50.8mm Thickness 14.9mm|
|Clasp type:||Three-fold clasp with push button release|
|Water resistance:||20 bar|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||
Caliber 9R16 is specially adjusted Caliber 9R66, to deliver an even higher level of precision.
Caliber 9R66 is ±15 seconds per month (equivalent to ±1 second per day), whereas Caliber 9R16 is ±10 seconds per month (equivalent to ±0.5 second per day).
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 Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.