The men’s watch pays homage to the famous 44GS from 1967 whose design was the first ever expression of the uniquely Japanese Grand Seiko Style which, ever since, has been its visual signature. It features the high beat Caliber 9S85 which delivers an accuracy of +5 to -3 seconds a day and a 55 hour
power reserve.
The challenge of making a high-beat movement is one that only a few watchmakers choose to accept. With its higher oscillation rate of ten beats per second, greater accuracy is achievable, but this increased precision comes at a price because the faster rotational speed can take its toll on the
power reserve and even the longevity of the whole movement. Grand Seiko's 10 beat movement meets these challenges and delivers an accuracy of +5 to –3 seconds a day, a power reserve of 55 hours and the durability for which every Grand Seiko watch is renowned. Caliber 9S85 is the result of many
years of development and of advances both in the design and manufacture of components and in the materials themselves.
Exterior
Exterior: Stainless steel case back: stainless steel and sapphire glass
Back cover: Screw see-through back cover
Glass material: dual curve sapphire
Coating: Inner non-reflective coating
Case size: Width 40.0mm Height 46.2mm Thickness 13.3mm
Bandwidth: 19mm
Clasp: One-push three-fold method
Arm circumference length (longest): 200mm
Movement
Movement: 9S85
Driving method: Mechanical automatic winding (with manual winding)
Drive period: Lasts about 55 hours at maximum winding
Accuracy: Average daily difference +5 seconds to -3 seconds
Functions
Waterproofing: Reinforced waterproof for everyday life (10 bar)
Antimagnetic: can be
Weight: 154g
Other: ・37 jewels ・Screw lock type crown
