General Discussion
The Grand Seiko casual dive watch is an essential tool that prioritizes accuracy, durability and ease of use, offering everything a diver needs while avoiding any distracting or frills. Take, for example, a watch face. The SBGH289 is blue and the SBGH291 is black, and both dials feature clean designs with large earpieces and clear layouts. The bold, faceted hour markers are fixed to the dial through a die-forging process to ensure their resistance to impact, while the hands are of varying shapes to make the time clear at a glance. Both dials feature a matte design to reduce reflections and make them easier to read. The hands, markers and bezel are generously coated with LumiBrite to improve nighttime visibility. Complying with ISO standards, there is also a small luminous dot near the three o'clock date position.
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