The U-Boat name is a major force in the world of luxury watches; a notable accomplishment for its mere 12-year history. This Italian watch company derives its name from the marine-theme designs for which the company is best known. U-Boat models are unmistakable, with blocky crowns at the 9 o'clock position, thus situated in order to allow divers full wrist motion underwater. The timepieces are also known for simple dials, often with Arabic Numerals at only the 4, 8 and 12 o'clock positions, and extremely oversized cases. U-Boat is the current world record holder for largest case size, measuring in at a massive 64.4 mm. Through a rigorously selective process in choosing materials, such as titanium, sterling silver, and 18k gold, in addition to details such as Superluminova hands and markers, U-Boats are regarded as some of the most desirable luxury models on the market.