is the first ever mechanical diver’s watch from Grand Seiko. 46.9mm case in Titanium. Automatic 9S hi-beat caliber and remarkable anti-magnetism of 16,000 A/m. 55 hours power reserve. Precision of -3 to +5 seconds a day, superb legibility, high durability, due to the high-intensity titanium case and bracelet and the distinctive clean edges that only Zaratsu polishing can achieve. The case is designed for saturation diving, with the valve-free helium resistance that results from Seiko’s innovative technologies, including the heavy duty construction and the L-shaped gasket. The grooves on the rotating bezel are extended for secure use, even with thick gloves. The bracelet has a sliding extension setting to accommodate pressure changes. Priced at 10,990CHF