The Seiko Prospex Turtle SRP777K1 is perfect for adventure - lovers and watch enthusiasts. Whether you're swimming in the pool, diving in the ocean, or just going about your daily life, this watch will keep up with you. It has a 44mm stainless - steel case and a black rubber strap, making it comfortable to wear all day. The watch uses a self - winding automatic movement, so you don't have to worry about changing batteries. With its 200M water resistance, it can handle water activities, and the luminous hands and markers help you tell time even in low - light conditions.