Ball Setting Instructions (Adobe PDF File). The setup process is fairly simple:
Set your local time with crown at "3" the usual way in all the way out position, set the calendar in the middle position, tighten the crown. Rotate world bezel with the crown at "2" and line up the city you are into the time on the 24 hour inner bezel in the 24 hour format value. Tighten the crown and now the watch is showing correct time value in every city of the world
However, to set up world time and keeping the 60 min bezel straight up at 12 o'clock isalittle tricky:
first, using crown at "2" and set 60 minute bezel at "12", than set the approximate local time as usual, moving forward hands with crown at "3". Once you are near the desired time, turn the crown back and forth, to rotate the 24 hourdisc and line it up with your city, if you have ways to go, go back an hour and forward. Once 24 hour disc is lined up with you city you can only go slowly
backwards into your local time.