The quartz watch is no longer waterproof after changing the battery, and the travel time is not accurate: this view is wrong.

- Mar 15, 2018-

The quartz watch is no longer waterproof after changing the battery, and the travel time is not accurate: this view is wrong.
The maintenance equipment of the professional repair station is perfect. After you change the battery, you will use professional instruments to be performed by a professional technician.
Re-press, re-set waterproof, measure the travel time error is within the normal value. So be sure to change the battery at a professional service station.