Imaginative use of materials makes this Spring Drive Chronograph GMT as robust as it is dramatic.
This powerful watch allies all the high functionality of the Spring Drive Chronograph Caliber 9R86 with a uniquely ‘go-anywhere’ design and a new combination of materials. The result is a timepiece of rare refinement. The case is stainless steel, the bezel is in gold tone and catches the eye immediately with its dodecahedron shape, and the buttons are made of 18k yellow gold. Thanks to this combination of materials, it is both strikingly beautiful and highly durable. Furthermore, this may well be the world's most accurate spring-driven chronograph, with a precision of ±15 seconds a month, or ±1 second a day.
|Exterior:||Stainless steel (partly 18K yellow gold) / Ceramics bezel / Sapphire crystal case back|
|Case back:||See through Screw Back|
|Glass Material:||Dual-curved sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|Case size:||Diameter 43.8mm Lug-to-lug 51.2mm Thickness 16.1mm|
|Clasp type:||Three-fold clasp with push button release|
|The perimeter of Band:||201mm|
|Water resistance:||10 bar|
|Magnetic resistance:||4,800 A/m|
|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.