This is an original Swiss Corum Automatic world time stainless steel which measures 36 mm in diameter not including the setting crown the bracelet measures about 7 1/4" or 18.4 cm. The watch works and keeps time perfectly. It has two setting buttons on the left had side of the case the world time and GMT function. I am a watch collector and restorer of watches and would happily repair or receive your watch in trade in any condition. The watch is used and has no box or papers.