Apple Delays Release of WatchOS 2 Due to Bug
techcrunch.com
techcrunch.com
"How does an Apple Watch owner know when its noon?"
"Their watch is dead"
"A year later, this was amended to Spring 2007, however on April 12, 2007, Apple issued a statement that its release would be delayed until October 2007 because of the development of the iPhone."
http://www.iphonehacks.com/2010/11/developer-reports-major-v...
Source: I found/reported the bug mentioned in the article.
Perhaps something with Apple Pay?
That couldn't be tested before today because the watch apps weren't available from the app store.
Why not? Apple must have internal tools to test this.