Movement: It is powered by a reliable Japanese TMI NH39 automatic winding movement, which supports both automatic and manual winding. Case and Material: The case is made of 316L stainless steel with a diameter of 43mm and a thickness of 13mm. It features a screw-down crown and a sapphire crystal dial window, known for being scratch-resistant. Water Resistance: The watch has a water resistance rating of 200 meters (660 feet or 20 bar), making it suitable for swimming, snorkeling, and surfing.. Strap: The watch typically comes with a nylon or leather strap, noted for comfort. Functions: Features include luminous hands, a 24-hour sub-dial, and anti-magnetic properties.