Breguet MARINE HORA MUNDI 5557 Manual De Instrucciones página 17

Setting the watch to the synchronised time zone
Press the crown-pushbutton II to move away from the
English
reference city, then pull it into position 2 and turn it in
either direction until the window at 6 o'clock displays the
city you are in or the city you have chosen (or, failing that,
the city representing the time zone you are in or the time
zone you have chosen). Then push the crown-pushbutton
back into position 1.
If the "Setting the time" operation has already been
carried out, the indications for the second time zone are
correct.
Note
Do not activate the crown-pushbutton II when the
crown I is in position 3 (setting the date).
When turning the crown-pushbutton II in position 2,
if an arrow appears on the cities disc in the window at
6 o'clock, change the turning direction.