The Seiko 5 Sports SRPD65K1 is perfect for sports enthusiasts and watch collectors. You can wear it while swimming, hiking, or during your daily activities as it's 100m water - resistant. It has a black stainless - steel band and case with an approximate size of 42.5mm in diameter and 13.4mm in thickness. The watch is powered by an automatic movement with manual winding capacity, ensuring reliable performance for up to 41 hours.