https://wccftech.com/black-ceramic-apple-watch-edition-series-5-almost-happened-heres-the-prototype-image/

Apple offered the Apple Watch Series 5 in a stunning white ceramic finish for the Edition model, but  also considered releasing it in black.

There are a lot of buying choices when it comes to Apple Watch. There is the entry-level Sport model, then the stainless steel one and then the top-tier Edition variant crafted from titanium. But, with the Series 5, Apple offered the Edition model made from ceramic, in white color, to be more exact.