Is Apple iWatch Going to Be Waterproof or Waterresistant?

I recently read that the apple’s iWatch is to be launched on April 24th. Has anyone heard about that?I am a sports person and would love to use this gadget during my swimming training sessions. Is it possible to use iwatch while swimming, bathing or in whatever conditions that might expose it to water. Is it possible to operate it under water? Is this Apple Watch Waterproof or water resistant?
Please someone to give me a helpful information?
