First, with the bezel marker set to 12 o'clock, change the GMT replica watches uk to point to the current Greenwich Mean Time (GMT) replica watches uk which is the same as the timezone in London. Change the hour hands and set it to the current timezone. With the Rolex GMT-Master II this is done easily as the minutes move with the GMT hand when the crown (unscrewed) is pulled two positions and the hours hand moves by itself when the crown is in the first position. That way, the GMT replica watches uk hand will indicate the current GMT reference time and using the bezel, one can move forward or backward to match the difference between GMT replica watches and the timezone you want to know. So in the pictures in this post, my Rolex GMT-Master II shows the time in US PDT and the GMT replica watches uk hand shows US EST which is -5 hours from GMT (or -4 hours as in now for daylight savings time).