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 exterior design is a modern interpretation of the brilliant and shining timepiece defined as part of the idea of the Grand Seiko Style, the design concept that was established with the launch of 44GS in 1967.
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. The expansive dial has twelve multi-faceted hour markers. The complementary arrangement of these elements
gives the watch a beautiful radiance and visibility.
Back cover: screw back cover
Glass material: dual curve sapphire
Coating: Inner non-reflective coating
Case size: Width 40.0mm Length 46.2mm Thickness 11.1mm
Clasp: One-push three-fold method
Arm circumference length (longest): 190mm
Driving method: battery-poweredquartz
Accuracy: ±10 seconds per year
Waterproofing: Reinforced waterproof for everyday life (10 bar)
Antimagnetic: can be
Other: ・Calendar-linked time difference correction function