The Sommerso line, featuring a beautiful two-tone dial and water resistance up to 300 meters, has been added to U-Boat's divers watch lineup to strengthen it. It has a two-tone ceramic insert in green and black that gives the unidirectional rotating bezel and satin steel casing a beautiful and durable touch. It is also a watch that is easy to wear and comfy thanks to its vulcanized rubber strap. The dial has a visible ruby at 6 o'clock and a 24-hour indicator. It includes a calfskin inside and a rubber strap that has been treated with Kodiak to make it water resistant.