The Seiko 5 Sports SRPK99K1 watch is great for adventure seekers and those who love water - related activities. You can wear it while swimming, diving, or just during your daily outdoor adventures. With a case diameter of 42.50 mm and a thickness of 14.2 mm, it's a sturdy and stylish timepiece. The watch uses an automatic movement, so you don't have to worry about winding it often. It also has luminous hands and markers, making it easy to read the time in low - light conditions. If you're looking for a reliable and durable watch, this is the one for you.