Question: how to adjust gwn 1000?
Answer: In the Timekeeping Mode, pull out the crown. This will cause CITY to flash on the digital display.
Press C. ... 
Rotate the crown to change the minute setting. ... 
Press B. ... 
Rotate the crown to change the hour setting. ... 
Press B. ... 
Rotate the crown to adjust the year setting. ... 
Press B.