Seiko's 5 collection has proven a popular choice among watch enthusiasts since its introduction in 1963. The current 5 lineup picks up where the well-loved SKX left, with an improved 4R36 movement with a 41-hour power reserve and a similar sporty case design. The SRPD63 features a Forest Green dial and bezel with a brushed stainless steel case and three-row bracelet, day and date window, luminous hands, and a visible movement through the caseback.