DAY & NIGHT (GMT) MODEL 515.24D
SETTING THE DATE
Pull out the crown to position II. (Watch still runs.)
Turn the crown clockwise until the
required date appears.
Push the crown back into position I.
NOTE: The date can also be corrected during
the day-changing phase between 10:30 pm and
12:00 a.m. The date of the following day has to
be set, because no automatic date change
takes place at midnight.
SETTING THE 24-HOUR DISPLAY
Pull out the crown to position II. (Watch still runs.)
Turn the crown counterclockwise until the
sun reaches the desired position.
Push the crown back into position I.
SETTING THE TIME
Pull out the crown to position III.
(The watch stops.)
Turn the crown until the current time is shown
(remember the 24-hour cycle).
Push the crown back into position I.
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