Limited edition of 2012 piecesr this chronograph is a sporty limited edition timepiece only 2012 such watches have been produced the b 42 chronograph 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 special rotor engraving a fine timing device and incabloc shock absorber hours and numerals are covered with luminous paint that enhances night time readability a date display i