3 days ago SEATTLE—It's day one of Microsoft's annual Build developer conference, and everything kicks off at am PDT/am EDT with the opening keynote. We' re expecting to hear a lot about machine learning/artificial intelligence, the " intelligent edge," and cloud computing from an array of speakers. 13 Jun There are many reasons that you might need to open a watch back and a variety of watch tools that can be used. If you need to change your watch battery or to replace a watch gasket, straighten the hands and remove dust, or completely replace a watch movement you will need to open the watch to do the. The first step in learning more about your watch, or trying to repair your watch, is to get the darn thing open. This can be a very tricky and frustrating operation. I should note that "learning" more about your watch starts inside the case. Any markings to determine what the case is made of will be stamped on the case.