Swiss Concept's Apple Watch Cases feature the Nautical Series, Royal Series and Racing Series, with a variety of editions within each line. Each model is hand-assembled in either PVD-coated matte black, 316L stainless steel, 18 karat plated rose gold, 18 karat plated yellow gold, forged carbon or a series of striking two-tone combinations, all inspired by the finest high-end watches at the pinnacle of the Swiss watchmaking industry.