Jaeger-leCoultre Reverso Tribute Duoface Small Seconds Manual page 12

By sliding it sideways you will cause the
time display on the back dial to jump by
one hour each time, thus, enabling you to
correctly set the second time zone display.
During this operation, also take into ac-
count the day/night indication on the 24-
hour counter.
Remember that the minutes are displayed
identically on both the dials. It is not possi-
ble to indicate a time difference of a frac-
tion of an hour, as is the case in some re-
gions of the world (India, Iran, Nepal).
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