The watchmaker said that it is a little water resistant, but I cannot use it under the shower. It's not a problem. He also said that the internal movement is still perfect and everything works fine ๐
It would be nice to see a closer image of the dial, but from this distance it looks to be promising. In my opinion, this sort of patina can be really beautiful. Glad to hear the movement has been properly serviced, without altering other elements.