Though fortis is mainly known as a company that creates watches for aviators its marine collection has already managed to prove its excellence the b 42 marinemaster daydate watch is equipped with swiss made eta 2836 2 automatic calibre that performs 28 800 vibrations per hour and has 26 bearing jewels other movement characteristics include incabloc shock absorber and fine timing device hands numerals indices and bezel elements are covered with luminous paint to ensure visibility in the da