Grand Seiko’s Spring Drive 200m diver’s watch has always been appreciated for its precision, functionality, and robustness. Now, in compliance with ISO standard 6425:2018, its legibility at depth is further enhanced by the inclusion of Lumibrite at all twelve hour indexes, including the one at three o’clock to the right of the calendar frame.
Rated to 200 meters, the case and band are made with High-Intensity Titanium, providing scratch and corrosion resistance with a notable weight reduction that's about 30% lighter than stainless steel. The rotating bezel is designed for simple maintenance and the area around the crown has been crafted to ensure that residue from dirt, sand, or seawater can be easily washed off.
The case measures 44.2mm in diameter, 14mm in thickness, and 50mm in length. Inside is Grand Seiko’s Spring Drive 9R65 caliber, which combines the motive force of a mainspring with the high precision of a quartz watch.
