SWATCH IRONY 2000 Sydney Olympics Commemorative Chrono Working good condition 1998 Olympic Commemorative Limited Edition DAY , Chronograph Time and date are in working order. The stopwatch works, but I don't have the manual, 　The stopwatch works, but we do not know if it is normal because we do not have the manual. 　The stopwatch works, but we do not know whether it is normal or not because we do not have the instruction manual. The arm circumference is approximately 17.5cm and can be extended. 　There is about 2cm of extra room.