по поводу обозначений на G-shock (расшифровка модели, производство и пр.) можно многое узнать
здесь
Where are G-Shocks made?
Basically G-Shocks are made in:
* Japan ca 1996
* Japan H ca 1984
* Japan M ca 1994
* Japan Y ca 1997
* Japan T ca 1994
* Japan K ca 1998
* Thailand Y ca 1996
* Thailand H ca 2005
* China Y ca 1996
* Korea C ca 1995
* Korea T ca 1993
* Korea Y ca 1998
* Malaysia ca1995
* Malaysia Y ca 2001
The letter after the country name may indicate different factory. The year indicates about which year the first watch was produced from the factory (best guess estimates).
Then there those Japan Y movement assembled in Thailand or Malaysia.
Some buckles are made in Indonesia.
Lastly there is Taiwan (but no Made in Taiwan)
