The Certina DS Super PH500M, reference C037.407.18.040.10 , is a men's automatic diving watch designed for underwater exploration. It features a 43mm stainless steel case with a blue dial and a matching blue NATO strap. The watch is powered by the Powermatic 80.611 movement, offering an 80-hour power reserve. It includes a date display at the 3 o'clock position and is water-resistant up to 500 meters, adhering to ISO 6425 standards. The sapphire crystal with anti-reflective treatment ensures durability and clear visibility. The unidirectional rotating bezel, made of stainless steel with an inlaid blue aluminum ring, enhances its functionality for divers.