Aporte original por: iPhone 3GS KING ,
The first generation apple watch (aka. Series 0) is the exact same thing as the Apple Watch Series 1 (which came out with the Series 2 (Second Generation) but with a small processor upgrade compared to the original Apple Watch). So an Apple Watch (1st Generation) screen will work on an Apple Watch Series 1. Now Series 1 and Series 2 Screens are completely different and will not work with each other. And obviously a 38 mm screen won't work on a 42mm screen.