Here in Switzerland you see clocks like these in pretty much every train station. I wouldn't call it exactly a "defunct" product. Mondaine sells this same design in a variety of products: just do a google image search and you will see some of those.
...and it's not that SBB is suing apple over the concept of a "numberless clock face with highly contrasting colors". They just look exactly the same. And when that's the case, I guess there's not much one can say.