Campanola CAN18 Instruction Manual page 21

7. Rotate the crown to align the longitude difference marker corresponding
to the difference got in the step 5 with the current time (in 24-hour system)
on the 24-hour markers on the dial ring.
The longitude difference markers exist just above the analemma on the
24-hour dial. The makers indicate every 5° with ▲ and 1° with ● .
Align the marker with the current time through the shorter course once,
then move it slightly with rotating the crown to the left, and finally
adjust its position exactly with rotating the crown to the right
(the 24-hour and lunar age dials turn to the left).
For example, if the observation point is 5° east (140°E) from the longitude
of Japan Standard Time (135°E), the lunar age is 5 and the current time is
17:00, Align the first left ▲ (5° to the 15°E direction) from the center ▲
(marker nearest of the analemma) with 17:00 of the 24-hour markers on the
dial ring, with rotating the crown to the right (the 24-hour and lunar age
dials turn to the left) at last.
8. Push the crown in to the normal position.
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