1. Find the adjustment shaft of the watch.

2. Press and hold the "A" key on the left, and at the same time pull out the protruding part on the right (that is, the small disc on the normal pull rod).

3. Pull the small disc outward by hand for a certain distance.

4. Then move the small disc to the set time or date by hand.

5. Move the small dish back to its original position and put it back to its normal position on the right.

6. When the new time or date is displayed on the display screen, release the "A" key on the left.