As its name suggests the fortis cosmonauts chronograph diamond comes with beautiful bezel decorations featuring the precious gem the watch is equipped with swiss made valjoux 7750 automatic calibre that performs 28 800 vibrations per hour and has 25 bearing jewels other movement characteristics include fine timing device and incabloc shock absorber hands numerals and indices are covered with luminous paint that enhances night time readability a day and date display is positioned at 3 oclo