Equipped with the main watch and sub dial, the watch can simultaneously indicate the local times in two regions.
Example: How to display the local time in Honolulu by the main watch, and the local time in Japan by the sub dial.
Main watch: Local time (Honolulu)
Honolulu time (−19 hours): 15 o’clock 8 minutes and 42 seconds
Date: 5th. Day of the week: Sunday
Sub dial: Home time (Japan)
Japan time: 10 o’clock 8 minutes (24-hour indication format)