Grand Seiko Sport Watch, 43.8mm Blue Dial, SBGH289With 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