This Operation Guide 5173 for the Casio watch, also identified as MA2112-ED, explains solar charging and battery level management. It describes radio-controlled atomic timekeeping, including Home City selection, auto receive, manual receive, and signal reception troubleshooting.
The guide also covers World Time, Stopwatch, Countdown Timer, Alarms, Illumination, Power Supply, Timekeeping settings, hand home position correction, and specifications.
| Auto receive frequency | Up to six times a day |
|---|---|
| Typical signal reception time | Two to seven minutes |
| Maximum signal reception time | 14 minutes |
| Display illumination duration | About one second |
It takes from two to seven minutes, but can take as long as 14 minutes in some cases.
It receives automatically up to six times a day, or five times a day for the China signal.
The Power Saving function may have turned off the display to conserve power.
The display illuminates for about one second when B is pressed, except in a setting mode.