1, the first is to stop the watch. Pull out the watch handle to stop the watch. Pulling out the watch handle can stop the watch and prevent the pointer from driving the glass to scratch the dial and calendar plate.
2. Never pull out the needle to quickly adjust the calendar, and don't try to take off the broken glass of the dial yourself.
3. When the watch is sent to the watch shop for repair, the watch should be placed flat (preferably with the glass face down) in the box, and severe vibration and shaking should not occur during repair.
4. During the maintenance, it is necessary to inform the maintenance personnel not to let the glass fragments scratch the dial and hands.