The high specifications of this diver’s watch are in accordance with the latest strict international ISO 6425 diver’s watch requirements for quality and clear visibility.
This model is powered by the 9S85 Mechanical movement, sophisticated watchmaking innovation through the precision controlling mainspring, the hairspring, and the escapement. Together the movement showcases the power and dynamism of the Mechanical Hi-Beat 36,000 with a power reserve of 55 hours.
Water resistant to a depth of 200 metres, this watch features LumiBrite for high visibility underwater and in less well-lit situations. Designed for use in some of the most unforgiving environments, the rotating bezel is removable for simple maintenance, while the area around the crown has been crafted to ensure that residue can be easily washed off.
With a mirror-finished case achieved through Zaratsu polishing, a lustrous rotating bezel, and multi-faceted cut indices, this watch is unmistakably Grand Seiko in its appearance, high specifications and durability.
Every Grand Seiko features signature high standards of precision, durability and legibility, handcrafted in Japan by Takumi artisans. Grand Seiko: beautifully, precise Japanese watchmaking, from the pinnacle of Seiko Watch Corporation’s in-house ‘manufacture.’
Movement
Accuracy:-3/+5 seconds per day Calibre:9S85 Movement Type:Automatic with Manual Winding Power Reserve:55 hours
Watch Exterior
Case Diameter:43.8mm Case Thickness:14.7mm Case Material:Stainless Steel Strap/Bracelet:Stainless Steel Lug Width:22.0mm Clasp:Three-fold clasp with secure lock & push button release, solid & slide adjuster Dial Colour:Blue
Other Specifications
Crystal Coating:Anti-reflective coating on inner surface Crystal Type:Sapphire Water Resistance:20 bar LumiBrite:Lumibrite on hands, indexes and bezel
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.
9R Spring Drive
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.
9F Quartz
The ultimate quartz movement. Caliber 9F incorporates several unique technologies that raise performance of quartz to the high standards of Grand Seiko.
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