Sport Collection Professional Diver's 600M, 60th Anniversary Limited Edition, ltd. 700 (9RA5)

Grand Seiko's flagship professional diver for its 60th anniversary, debuting the 5-day (120-hour) Spring Drive 9RA5 caliber in a 46.9mm high-intensity titanium case rated to 600m. Limited to 700 pieces worldwide, it pairs a black ceramic-inset unidirectional bezel with a titanium three-link…

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