By turning the rotating bezel, another time can be read at the 24hour hand.
In the case of 24hour hand being set to 24 hours of the hour and minute hands
<The direction and the amount to turn the rotating bezel can be determined by the following method>
[The direction and the amount to turn the rotating bezel] E
is calculated as,
[Time difference from UTC of 24hour hand, C]  [Time difference from UTC of the region you wish to know, D]
E = C  D
In this example, the 24hour hand indicates Japan time, and therefore, C = +9.

As an example, if the time of a region you wish to know belongs to the time zone of UTC, the time difference from UTC is “0” and hence,
D = 0
E = C  D = (+9)  (0) = +9
UTC can be read as “1:00” on the rotating bezel scale. 
As another example, if you wish to know the time of the region “Los Angeles”, the time difference from UTC is “8 hours”, so D = 8
E = C  D = (+9)  (8) = +17
Turn the rotating bezel 17 hours clockwise. (Result: Same as the counterclockwise rotation of 7 hours)
Los Angeles time can be read as “17:00”.
If E is a positive number “+”, turn the rotating bezel clockwise. If it is a negative number “”, turn it counterclockwise.
When this intended usage is no longer needed, please return the original position “24” mark of rotating bezel to 12 o’clock position.
In the case of 24hour hand being set to different time zone
Three different time zones can be read by turning the rotating bezel.
【Example】 When displaying 10:08 AM Japan time with the hour and minute hands, and displaying Paris time with the 24hour hand,
Time difference from UTC of “Paris” where the 24hour hand is set, C = +1
Time difference from UTC of “Bangkok” that you wish know from now on, D = +7
E=CD= (+1)  (+7) = 6
Turn the rotating bezel counterclockwise and set.