The Sinn U1 is a diving watch known for its robustness, functionality and high durability. The history of the clock goes back to year 2005, when it was introduced by the German watch manufacturer Sinn Spezialuhren.

From the start, the Sinn U1 was designed as a diving watch designed and developed. The case of the watch is made of stainless steel and has a diameter of 44 mm. It's up to one depth of 1,000 meters water resistant and features a unidirectional rotating bezel that allows divers to accurately time their dive time. The Sinn U1 also features anti-magnetic shielding and a scratch-resistant sapphire crystal to ensure it can be reliably read underwater and in extreme conditions. The watch face is simple and easy to read, which is important even in poor visibility.

Although only on the market since 2005, the Sinn U1 has already garnered a loyal following and is loved by divers, sailors and other outdoor enthusiasts around the world. The watch is considered robust and reliable, making it a perfect choice for adventurers looking for a quality dive watch that can handle any situation.