Deftly blending the aesthetics of diving and mil-spec field watches, the SRPD91 from Seiko's 5 Sports line is ideal for daily wear. Its stainless steel case has a black ion finish for a stealthy look that pairs perfectly with the black dial and black unidirectional rotating bezel insert. Visible through the caseback is the Caliber 4R36 automatic movement, which drives both the hands and the day/date window at 3 o'clock. The luminous hands and markers help with readability and are particularly useful when taking advantage of its 10-bar water resistance rating. It sits on a green nylon strap with matching black ion hardware.

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