Heritage Collection Quartz 40mm with new Caliber.9F85
The 9F Quartz Model of the Heritage Collection, which has been developed in pursuit of perfection, has been upgraded with the new 9F85 caliber.
Caliber 9F85 has a time difference adjustment function that allows the hour hand to be adjusted without stopping the seconds hand and thus preserving its high precision when the wearer changes time zones.
The case utilizes perfect mirror-finished surfaces created using Zaratsu polishing, and combines beautiful and shining mirror-finished and hairline-finished surfaces for three-dimensionality. Enlarged glass size makes the bezel thinner, and that gives a sharp and refined impression, and the dial looks more spacious.
|Case back:||Screw case back|
|Glass Material:||Sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|Case size:||Diameter 40.0mm Lug-to-lug 47.0mm Thickness 10.6mm|
|Clasp type:||Three-fold clasp with push button release|
|Caliber no.:||9F85 Instructions|
|Accuracy:||±10 seconds per year|
|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 Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.