Reset my G Shock watch

You can download manual from Casio's web page. I give you couple links.

MTG900DA 8V Shock Shock Mens Tough Water Resistant Analog Digital Watches...

In depth Review of Casio MTG 900 Shock Waveceptor Tough Solar Watch

Check your rechargeable battery level.When MED or LOW (M or L) some functions are disabled in order to save energy to keep time (at least) running.If L,recharge immediatelly by exposing the watch to direct sunlight (not behind window glass) for 5-6 hours.Check the battery level in the mean time.Recharge more,if needed.

i dont know

Timing signals are sent out between 0100 and 0600 hours, so perhaps waiting a little might solve your problem.

I had a similar experience with mine after I had the battery changed and it took a few days to get the time right.

Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all CASIO watch manuals. Rate me, please

The watch will set itself at specific time set times, this is likely to be at 0200 0400 and 0600.
You will however be required to set the time zone, the switch is likely to be on the back.
INFO:
Atomic Time Synchronisation:
How does it work.
SHORT VERSION:
Radio set clocks and watches receive a 60-kilohertz, radio signal from the NIST the official timekeeper for the US and is located in Boulder, Colorado. Ft. Collins. they use atomic clocks and transmits this official time via high frequency short-wave and low frequency AM radio signals, satellite transmission, Internet, and via telephone.

REFERANCE LINKS:
OFFICAL TIME:
http://www.time.gov/timezone.cgi?Eastern/d/-5/java
PHOTO OF ANTANA TRANSMITTERS:
http://tf.nist.gov/stations/wwvb.htm
R/
David
http://antiqueclock.clockstop.com/

It sounds like it. Take it to a local dealer who will change it for you.

Check out this YouTube video which walks you through the battery change process:

http://www.youtube.com/watch?v=ogCz2vjUKVg

Did you try to find solution here?:

http://world.casio.com/wat/download/en/manual/

Rate, please.

Did you try this?:

http://world.casio.com/wat/download/en/manual/

Rate, please.