About This Watch: This Oris Big Crown Timer Watch 675 7648 4234 – 07 5 23 76 has an automatic chronograph movement with a day and a date window. It features a black dial with luminous index and a scratch resistant sapphire crystal. Its finely crafted 46mm case is made out of stainless steel. This watch is water resistant up to 3 bar; 30 meters; 100 feet.