Grand Seiko Sport Collection SBGH289G With its screw-down crown, distinctive hands generously coated with Lumibrite, one-way rotating bezel and water resistant to a depth of 200 meters, this watch provides all the security and legibility that the diver requires. It also offers the precision and durability of Grand Seiko's divers' high-beat movement, Caliber 9S85. Each hand is different, to ensure that the time can be read easily and without error that they stand out clearly from the dark blue dial. The triangular marker at twelve o’clock ensures that, even at depth, no mistake is made. Exterior Exterior: Stainless steel Case back: Screw case back Glass Material: Sapphire crystal Glass Coating: Anti-reflective coating on inner surface LumiBrite: LumiBrite on hands, indexes and bezel Case size: Diameter 43.8mm Lug-to-lug 51.0mm Thickness 14.7mm Band width: 22mm Clasp type: Three-fold clasp with secure lock & push button release, solid & slide adjuster The perimeter of Band: 190mm Movement Caliber no.: 9S85 Movement Type: Automatic with manual winding Power reserve: Approx. 55 hours Mean daily rate: +5 to -3 seconds per day Functions Magnetic resistance: 4,800 A/m Other details / Features: Unidirectional rotating bezel Screw-down crown Three-fold clasp with secure lock 37 jewels
