Regarding watches what is the difference between waterproof 50 meters and 100 meters.It says on front only back. Can i still shower with it on?

The difference between a watch that is water-resistant to 50 meters and one that is water-resistant to 100 meters is the depth at which the watch can be submerged without water leaking into the case. A watch that is water-resistant to 50 meters can be submerged in water up to 50 meters deep, while a watch that is water-resistant to 100 meters can be submerged in water up to 100 meters deep.

Whether or not you can shower with your watch on depends on the water-resistance rating of the watch and the water pressure in your shower. In general, it is not recommended to wear a watch in the shower unless it is specifically designed for swimming or diving. Most watches are not designed to withstand the high water pressure in a shower, and the constant exposure to water and soap can damage the watch's seals and gaskets.

Here are some additional tips for protecting your watch from water damage:

* Rinse your watch off with fresh water after every exposure to salt water or chlorine.

* Avoid exposing your watch to extreme temperatures.

* Do not wear your watch while swimming or diving unless it is specifically designed for those activities.

* Have your watch's water resistance tested annually by a qualified watchmaker.