The Seiko SBSA019 is a great watch for sports enthusiasts and watch collectors. You can wear it while running, swimming (up to 100M), or during your daily activities. With an approximate case size of 42.5mm and thickness of 13.4mm, it's a well - proportioned watch that fits comfortably on your wrist. It offers reliable automatic movement and a stylish green dial that will surely catch people's eyes.