In addition to the fact that mechanical watches are subject to severe magnetic stress, most of the long-term use will slow down. The reason for the slowdown is that the movement lubricant becomes more and more viscous over time, and the dust inside the movement mixes with the lubricating oil to form a so-called “sludge”. Because the effect of lubrication is reduced, the watch naturally becomes slower. The solution is to wash the oil at a professional maintenance facility or a qualified service technician. Washing oil, the general watch consumers themselves can not do.
The movement of the movement is a cumbersome task. Simply put, the parts of the movement are completely disassembled, the sludge is washed off and the new oil is applied. The disassemble does not cause any scratches on the movement parts, the movement function and Accuracy cannot be affected at all.
Every four to five years, the watch movement should be cleaned and maintained, which is the key to ensuring that the watch can be used for a long time. The cost of maintaining the watch should be taken into consideration when purchasing the watch. In general, the more expensive the watch, the more expensive it is to maintain. Rolex maintenance once about 3000-5000 yuan, the maintenance costs of the Patek Philippe basic models are generally close to 10,000 yuan.