G-Shock GW-1800DJ-1A9 - Manual (Page 16)

E-15
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically six
times a day. When any auto receive is successful, remaining auto receive
operations are not performed. For more information, see “About Auto Receive”
(page E-20).
• Manual Receive
Manual receive lets you start a time calibration signal reception with the press of a
button. For more information, see “To perform manual receive” on page E-23.