amanico[JLC Moderator]
400663
Consider it as not water resistant, so avoid any contact with water.
Check that the case back is firmyl closed, replace the seals, and if you live in a hot and humid country, it will be ok.
Best,
Nicolas
Just don't expect...
By: KIH : June 22nd, 2014-00:11
.. vintage watches to be really water resistant even if it is so engraved on the back. And keep it or them in the humidity/ temperature controlled places.... That is the best you can do while you can enjoy the (almost) daily use.... Ken