At the keynote Apple emphasised that its watch will be a precise device. I myself have not worn a watch since I got my first iphone, the 3GS back in 2009. The clock on the iphone has been live on the UI for a couple of years now and the digital clock on the lock screen shows me the time when I request it. In the time I've relied on the iphone for the time, it has never caused me to be late and I have never missed an appointment as a result of being misinformed of the time from my phone. It also reverts to and from daylight savings when warranted. As far as time keeping is concerned, the iphone does a better than damn good job. So my question is, how much more accurate than the iphone can the A watch possibly be? Or how much less accurate will the iphone time be? If we're talking 5 seconds over the course of a month or a year then is precision really going to be a point of difference over other time keepers? Yes I know the watch will do alot more than tell the time, but my point is, Apple has done a great job with time keeping on its IOS devices as it is, how much more scope for accuracy can there be?