Generally speaking, cleaning a watch within three to five years, it is good for it to prolong lifespan. But inn real life, there are a number of people own their watch runs regularly without oil. So I am confused how often should oil a watch?
Meanwhile, there are diverse oils in the world, such as Mineral, petroleum, animal, and vegetable and so on.I am curious what type of oil using in the mechanical watch. Can you guys have any ideas? Thanks a lot












