Three most important points for watch maintenance 2. Good waterproof performance.

　　The most basic feature of waterproof performance is that it can reach 30 meters waterproof, that is, under the condition of 3 atmospheres, the watch case is basically in a closed state.By comparison, it can be seen that AP Royal Oak protector It has certain advantages and great cost performance. https://finewatchcare.com/collections/audemars-piguet-watch-protection-films?oseid=5oDqojjhU9T7hZdocZzyNBqx

　　Good waterproof performance can ensure the long-term use of the watch and is not affected by water vapor and corrosion.