Mechanical watches should be maintained for two to three years 1 time. During maintenance, all parts of the watch should be disassembled, the movement should be wiped with 120 gasoline, then other instruments in the watch should be cleaned with professional equipment, and finally oiled and assembled.
In addition to the internal parts of the watch, the outer shell of Tissot watch should also be polished when cleaning the watch. Because watches require very high technical parameters, cleaning watches is a very delicate job, and professional cleaning usually takes 5 days to complete.