I just made a search and couldn't find an article about Philippe Dufour on the forum, except that it was mentioned in some posts..
For me, he is the top of the High-End..

Let me allow to start a topic for the great master. I was able to meet with him this summer during my visit at Vallee de Joux. He was spending time on the Grand Sonnerie when I visited him, which will be (according to his words) probably the latest one that he will ever make..

Here is also a quick shot of Simplicity. The left one is the so called 000 prototype which he brought from his personal safe..