This Seiko Marinemaster watch is perfect for diving enthusiasts and watch collectors. Whether you're exploring the deep sea or attending a casual event, it's a reliable companion. With a case diameter of about 44.3mm and a thickness of 15.4mm, it fits comfortably on your wrist. The 300m water resistance allows you to dive fearlessly, and the 50 - hour power reserve ensures it keeps ticking even when you're busy.