Casio module 5639

1. In the Calendar Mode (normal timekeeping), pull the crown out to the second click: the second hand moves to 12 o'clock.
2. Turn the crown to set the hour and minutes; check the 24-hour hand for a.m. (right side) or p.m. (left side).
3. Press A and turn the crown to point the second hand at the tens digit of the year.
4. Press A and turn the crown to point the second hand at the ones digit of the year.
5. Press A and turn the crown to set the month.
6. Press A: the second hand goes to 12 o'clock. Turn the crown to set the day; the function hand moves along with it.
7. Push the crown back in on a time signal, at the top of a minute.
8. To take the time from a paired phone instead: with the CASIO WATCHES app running, in the Calendar Mode hold B for at least 0.5 seconds and release it as soon as the second hand points to R.

From Casio's guide, page 6

1. Open the CASIO WATCHES app on your phone.
2. On the watch, hold B for at least two seconds until the second hand points to R twice: the watch connects.
3. In the app, follow the screen to change your Home City summer time setting.

From Casio's guide, page 10

1. Before you leave, set the World Time (the Dual Time on the small dial) to your destination with the CASIO WATCHES app.
2. Turn off auto time adjustment in the app: connect by holding B for at least two seconds until the second hand points to R twice, then follow the app.
3. When you arrive, swap the Home Time and the World Time in the app (connect the same way).
4. Turn auto time adjustment back on, then hold B for at least 0.5 seconds until the second hand points to R to adjust the time.

From Casio's guide, page 15

1. In the Calendar Mode, pull the crown out to the first click: the second hand moves to 12 o'clock and the function hand to DT.
2. Press A: the function hand moves to ALM and the alarm is switched on.
3. Turn the crown to set the alarm time on the small hour and minute hands; check the small 24-hour hand for a.m. or p.m.
4. Push the crown back in.
5. To switch the alarm off or on: pull the crown out to the first click, press A, then press B to move the second hand between ON and OFF, and push the crown back in.

From Casio's guide, page 13

1. Pull the crown out to the second click: the second hand moves to 12 o'clock.
2. Hold B for at least five seconds and release it when the watch beeps: the second hand makes one full turn.
3. Turn the crown to set the second hand exactly at 12 o'clock, then press B.
4. Turn the crown to set the hour, minute and 24-hour hands at 12 o'clock, then press B.
5. Turn the crown to set the small hour, small minute and small 24-hour hands at 12 o'clock, then press B.
6. If the function hand or the day indicator is off, turn the crown to bring the function hand to 12 o'clock and the day to the middle of its window.
7. If you cannot get them right that way, press B and turn the crown until the day indicator shows 1.
8. Push the crown back in, then check the time and day.

From Casio's guide, page 14

1. In the Calendar Mode, press A: the watch enters the Stopwatch Mode and starts timing.
2. Press A to stop, A again to carry on.
3. For a lap time, press B while it runs: the lap shows for about 10 seconds while timing goes on, and the function hand shows the difference from the previous lap.
4. When it is stopped, press B to reset it to all zeros.
5. Press B again to go back to the Calendar Mode.

From Casio's guide, page 11

1. In the Calendar Mode, pull the crown out to the second click: the second hand moves to 12 o'clock.
2. Hold A for at least 10 seconds, until the second hand makes one full turn.
3. Push the crown back in.

From Casio's guide, page 14