An innovation in case construction: instead of one piece, the case is composed of simple modular elements manufactured and assembled at very low cost. Using this concept, the company has produced 4 lines with a total of 14 different versions based on the same surgical steel case : Joss Diamond with mother-of-pearl dial and a full-cut diamond (4 quartz versions); Joss Solar with a solar movement (3 quartz versions); Joss Mecano (4 automatic versions); and Joss Eco (3 quartz versions). Sapphire crystals (except Eco). 10-micron goldplated elements in the bimetallic versions. 2-year guarantee.