I got a Chanel J12 for my girlfriend.Now i want to know how to waterproof this watch.
Spec:38mm Full Ceramic/ Sapphire Crystal/ 21J movement.
I just open the watch and found that there is a little spaces between the caseback and case, and found that the gasket is inside where the front and movement sits in.
I don't understand this model at all and a bit of help would be grateful.
btw: how do you know if its full ceramic? Place a magnet on the case without the movement in it????
Spec:38mm Full Ceramic/ Sapphire Crystal/ 21J movement.
I just open the watch and found that there is a little spaces between the caseback and case, and found that the gasket is inside where the front and movement sits in.
I don't understand this model at all and a bit of help would be grateful.

btw: how do you know if its full ceramic? Place a magnet on the case without the movement in it????