•If you are in an area where proper time calibration signal reception is impossible, the watch keeps the time with the precision noted in “Specifications”.
•If you have problems with proper time calibration signal reception or if the time setting is wrong after signal reception, check your current city code, DST (summer time) (page
•The Home City setting reverts to the initial default of TYO (Tokyo) whenever the battery power drops to Level 5 (CHG) or when you have the rechargeable battery replaced. If this happens, change the Home City to the setting you want (page
The time calibration signal received by this watch depends on the currently selected Home City code (page
•When a U.S. time zone is selected, the watch receives the time calibration signal transmitted from the United States (Fort Collins).
•When a Japanese time zone is selected, the watch receives the time calibration signals transmitted from Japan (Fukushima and Fukuoka/Saga).
•When a European time zone is selected, the watch receives the time calibration signals transmitted from Germany (Mainflingen) and England (Anthorn).