Limited Edition of 100 Pieces. Sinn Watch 1800 S GG Damaszener Limited Edition 1800.050 Leather. Where functionality defines design and every little detail serves to highlight the innovative technology at play, this is where Sinn Spezialuhren is at work. Since the company was established in 1961, we have continuously focused on high-quality mechanical watches combining a traditional sense of quality with advanced solutions. As a result, we’ve frequently incorporated materials that have never been used in watchmaking. For example, in 1995 we presented the first watch made from 22-carat yellow gold with a material hardness equal to that of stainless steel (220 HV). In 2005, German Submarine Steel was used for the first time in diving watches. The launch of our 100-piece limited-edition 1800 S DAMASZENER marks the first time we rendered the highly traditional material, Damascus steel, into a form suitable for watch cases, a sophisticated concept flawlessly upheld in our 100 piece limited edition 1800 DAMASZENER.