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.From the demand side, Patek Philippe watch film More in line with the psychological expectations of consumers, willing to pay for the things they like. https://finewatchcare.com/collections/patek-philippe-watch-protection-films

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