Talking about the waterproofness of watches. How much do you know about the waterproofness of watches?

30-50mm is not waterproof Can resist the accidental splashing of water when washing hands and faces every day.

100m-300m is common waterproof. In most cases, ordinary swimming can be prevented.

More than 300mm is a diving watch. Snorkeling only.

Above 300mm and equipped with exhaust valve, you can dive.

What is higher can correspond to a deeper diving table.

But even the nominal 10000 submersible meter can be tied to the limit of the meter outside the nuclear submarine.

Nor can it be used for hot baths and saunas.

There is also every time after washing oil or opening the lid. Be sure to apply waterproof oil.

Regular inspection and maintenance of waterproof ring and other waterproof aspects.

After a long time, the waterproof ring is aging and the waterproof oil is almost consumed. The waterproof effect will naturally decrease.