The 40mm Black Divers Watch '50 Fathoms' NH35 Seiko TMI Auto Movt NATO Strap 10ATM is a stylish wristwatch designed for diving with a water resistance of up to 100m. Featuring a mechanical automatic movement, this watch has a durable stainless steel and nylon NATO strap in both black and silver colours. The unidirectional rotating black bezel adds a sleek touch to its diver-style design. Suitable for teens, men, and unisex adults, this watch is a practical and fashionable choice for anyone who loves both style and functionality in their accessories.