Why is it so difficult to tell which series your watch is. On the watch app on an iPhone, you go to General, About, you get all kinds of data such as Version, Model Number, Serial Number, Wi-Fi Address, etc, but no Series Number. In order to get Series, you go to Model number, which gives you an M number. Touch there and you get an A number. Then you have to cross reference this A number to a list on the web to find the watch series. Come on Apple! This is the 21st Century. How much trouble would it be to list the Series number in the watch app? Yes, it's on the back of the watch, but you need a magnifying glass to find it and read it there with my old eyes.