The chronofighter oversize referee black is a limited edition watch solely 250 pieces are available its calibre is g1735 automatic tri compax chronograph it performs 28 800 vibrations per hour the watch is equipped with incabloc shock absorber 25 jewels and a 48 hour reserve additional functionalities include its chronograph has seconds 30 minutes and 12 hours counters a date window is positioned at the 9 oclock mark hands mark hours minutes and seconds domed sapphire crystal glass