You buy a new watch and see that it has 50M written on its dial. Does this mean that you can actually take it 50 meters (~165 feet) below water surface? It would be quite handy, right? Not so fast! You would actually permanently damage your precious time piece.
Automatic watches are attractive, expensive and highly valuable. They are unique and different from other types of watches and contain complex mechanical components. Due to these qualities, you have to afford them more care and attention.